Relevant bibliographies by topics / Recrystallization kinetics

Academic literature on the topic 'Recrystallization kinetics'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Recrystallization kinetics"

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Kaverinsky, V. V., and Z. P. Sukhenko. "Mathematical Modelling of Primary Recrystallization Kinetics and Precipitation of Carbonitride Particles in Steels. II. Recrystallization Kinetics." METALLOFIZIKA I NOVEISHIE TEKHNOLOGII 43, no. 2 (April 23, 2021): 235–44. http://dx.doi.org/10.15407/mfint.43.02.0235.

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Erukhimovitch, V., and J. Baram. "Modeling recrystallization kinetics." Materials Science and Engineering: A 214, no. 1-2 (August 1996): 78–83. http://dx.doi.org/10.1016/0921-5093(96)10223-9.

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Kraft, F. F., R. N. Wright, and M. K. Jensen. "Kinetics of nonisothermal recrystallization." Journal of Materials Engineering and Performance 5, no. 2 (April 1996): 213–19. http://dx.doi.org/10.1007/bf02650889.

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Bracke, Lieven, Kim Verbeken, Leo Kestens, and Jan Penning. "Recrystallization Behaviour of an Austenitic High Mn Steel." Materials Science Forum 558-559 (October 2007): 137–42. http://dx.doi.org/10.4028/www.scientific.net/msf.558-559.137.

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The recrystallization behaviour of a cold rolled austenitic Fe-Mn steel is studied to explain the fine grained final microstructure. Thorough investigation of the kinetics, the microstructure and the texture evolution during recrystallization showed that the fast recrystallization kinetics is responsible for the final microstructure, while an oriented nucleation mechanism determines the texture evolution. The reason for the fast recrystallization kinetics is the low amount of recovery prior to recrystallization, resulting in a high driving force for the latter.
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He, T., Y. D. Liu, Yan Wu, Q. W. Jiang, Gang Wang, Yan Dong Wang, and Liang Zuo. "Study on the Micro Mechanism of Recrystallization Texture Formation in Cold-Rolled IF Steel Sheet." Materials Science Forum 495-497 (September 2005): 417–22. http://dx.doi.org/10.4028/www.scientific.net/msf.495-497.417.

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An experimental setup was designed to study the recrystallization kinetics of Interstitial Free (IF) steel in this work. The 80% cold rolled IF steel foils are heated rapidly to 680°C, 730°C and 780°C by a salt bath. The recrystallization kinetic curves were obtained by the quantitative analysis of texture components, microstructures and EBSP (electron back-scattering patterns) measurements. With the help of EBSD, the orientations of the recrystallization nuclei are determined. The growth rule of the recrystallization nuclei was analyzed statistically. The effect of nucleus orientation on the formation of the recrystallization texture was investigated.
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Chun, Y. B., S. Lee Semiatin, and Sun Keun Hwang. "Monte-Carlo Modeling of Recrystallization Kinetics of Cold-Rolled Titanium." Materials Science Forum 654-656 (June 2010): 1486–91. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.1486.

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The recrystallization behavior of cold-rolled, commercial-purity titanium was studied experimentally and with Monte-Carlo (MC) modeling. Utilization of EBSD-OIM as input for MC modeling resulted in realistic predictions of recrystallization kinetics, microstructure and texture, which were in good agreement with experimental results. MC modeling of recrystallization kinetics predicted that the non-uniform stored energy distribution, heterogeneous nucleation of recrystallization and recovery in combination leads to a negative deviation from linear JMAK kinetics. It was found that concurrent recovery that takes place during recrystallization is an important process that controls both the overall recrystallization kinetics and the deviation of linear JMAK kinetics. On the other hand, the non-uniformly distributed stored energy itself has little effect on the negative deviation from JMAK kinetics but intensifies the deviation when heterogeneous nucleation is combined. Modeling results also revealed that heterogeneous nucleation of recrystallized grains and their early impingement in local areas of high deformation are essential for producing a log-normal distribution of grain size and a typical recrystallization texture of rolled titanium.
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Xiong, Xue Gang. "Austenite Recrystallization Model of High Ti Microalloyed Steels." Advanced Materials Research 1014 (July 2014): 25–32. http://dx.doi.org/10.4028/www.scientific.net/amr.1014.25.

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Through the thermal simulation test, the curves of austenite recrystallization kinetics is recorded, the influence of the parameters including deformation temperature, strain and strain rate on the austenite recrystallization fraction of Ti microalloyed steels is studied, the recrystallization kinetics equation is calculated, and the austenite recrystallization model of the test steel is obtained. The results improve that Ti inhibits both the dynamic and static austenite recrystallization in high Ti microalloyed steels.
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RAOUGUI, Atae, Ion GRECU, Volkan Murat YILMAZ, and Kenan YILDIZ. "SOĞUK HADDELENMİŞ AA3105 VE AA5005 LEVHALARIN DSC ANALİZİ İLE YENİDEN KRİSTALLENME KİNETİĞİ." Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences 8, no. 17 (September 25, 2021): 80–85. http://dx.doi.org/10.38065/euroasiaorg.621.

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In this study, the non-isothermal recrystallization kinetics of cold rolled AA3105 and AA5005 aluminum alloy sheets obtained from ASAŞ Aluminum located in Akyazı-Sakarya was studied by using differential scanning calorimetry (DSC). The non – isothermal kinetics was performed by using Kissenger, Boswell, Ozawa and Starink methods known as model – free methods. The recrystallization temperatures on DSC graphics at different heating rates (β) were deduced and the activation energies were calculated from the slopes from Y – 1/T diagrams. Y is ln(β/T2) for Kissenger, ln(β/T) for Boswell, ln(β) for Ozawa and ln(β/T1.92) for Starink. The results showed that the activation energies of recrystallization are in the range of 194 – 206 kJ/mol for cold rolled AA5005 sheet and in the range of 235 – 257 kJ/mol for cold rolled AA3105 sheet, according to four non-isothermal kinetics model.
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Dutta, S., and M. S. Kaiser. "Recrystallization Kinetics in Aluminum Piston." Procedia Engineering 90 (2014): 188–92. http://dx.doi.org/10.1016/j.proeng.2014.11.835.

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Wang, Jian, and Hong Xiao. "Determination of the Kinetics for Dynamic and Static Recrystallization by Using the Flow Curves." Materials Science Forum 575-578 (April 2008): 904–9. http://dx.doi.org/10.4028/www.scientific.net/msf.575-578.904.

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Improved methods to estimate the kinetics of dynamic and static recrystallization are proposed in this paper. The kinetics for dynamic and static recrystallization can be evaluated by inverse analysis of the flow curves obtained using the single-hit and double-hit hot compression tests carried out on Gleeble 3500. The dynamic and static recrystallization volume fractions can be seen as functions of plastic strain and time, respectively. The mathematical formulations between the recrystallization volume fractions and the dislocation density related to the flow stress are used in incremental forms in the study. The methods are applied to the hot compression tests of plain carbon steel and the kinetics of dynamic and static recrystallization are gained successfully for some conditions at elevated temperature. The results are clarified by comparing them with those reported in previous investigations. It is confirmed that the present methods can provide accurate kinetics for dynamic and static recrystallization with shorter time for experiment and computation.
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Dissertations / Theses on the topic "Recrystallization kinetics"

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Simielli, Eider Alberto. "Deformation and recrystallization kinetics of microalloyed steels in the intercritical region." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74539.

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Three microalloyed steels were tested under continuous and interrupted loading conditions. These materials consisted of a base steel containing 0.06%C and 1.31%Mn and two further alloys containing single additions of 0.29%Mo and 0.04%Nb.
Double hit compression tests were performed on cylindrical specimens of the three steels at 820, 780 and 740$ sp circ$C within the $ alpha$ + $ gamma$ field. A softening curve was determined at each temperature using the offset method. It was observed that, in the base steel, $ alpha$ recrystallizes more slowly than $ gamma$. The addition of Mo steel retards the recrystallization of the base material; it has a greater influence on $ gamma$ than on $ alpha$ recrystallization. Nb addition has an even greater effect on the recrystallization of the two phases. In this steel, the recrystallization of ferrite was incomplete at the three intercritical temperatures. Furthermore, the austenite remained completely unrecrystallized up to the maximum time involved in the experiments (1 hr).
The progress of ferrite recrystallization was followed on quenched specimens of the three steels by means of quantitative metallography. Most of the data fit an Avrami equation with exponents in the range 2 to 2.5. A departure from this equation was observed for the final stages of the recrystallization process. Growth rate analysis showed that the average growth rate decreased with time for all the experimental materials, this decrease being greatest for the base steel and least for the Nb-containing grade. The nucleation of recrystallization was observed to occur heterogeneously in the microstructure. The interface between ferrite and austenite was the preferred site for nucleation. Measurement of the number and size of recrystallized ferrite grains showed that some grains begin to recrystallize very early, growing to a large size by the end of the process. The total number of grains increased continuously until almost 80% of the volume fraction was recrystallized. After that, due to coalescence, the number of recrystallized grains decreased very rapidly. (Abstract shortened by UMI.)
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Bunkholt, Sindre. "Subgrain Growth, Recovery Kinetics and Nucleation of Recrystallization of Cold Deformed Aluminium Alloys." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for materialteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23652.

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Phenomena related to annealing of aluminium alloys are among the least understood in aluminium metallurgy but very important for industrial thermo-mechanical processing i.e. deformation and annealing. Physical models are used to predict recovery and recrystallization behaviour, and associated material properties, industrially. However, alloy development, e.g. to incorporate more recycled aluminium, has shown that current softening models are not satisfactory. Thus, improvements do require a better understanding and quantitative description of these phenomena. In this PhD work, subgrain growth has been studied by EBSD in cold rolled high and commercial purity aluminium alloys with emphasis on the subgrain growth behaviour of individual texture components (orientation dependent). The growth mechanisms do not appear particularly alloy dependent but coarsening is dissimilar in differently oriented subgrain structures. In the Cube and Goss texture components, growth is particularly fast after an incubation time, which is not observed in the Cu, S or Brass components. However, the local orientation gradients appear to be more important for the growth mechanism than the actual orientations. Typically, there are large orientation gradients and the boundary misorientations are increasing during annealing. However, in both S and Brass, decreasing misorientations were observed when the local orientation gradients were < 0.5°/µm, suggesting another growth mechanism. Subgrain sizes and misorientations were successfully characterized using a novel method developed within this PhD work, utilizing commercial EBSD and photo editing software. In addition, the effect of interannealing on softening and recrystallization was investigated in the commercial purity alloy and comprehensively described. In literature there is some uncertainty related to this topic. Interannealing greatly influence whether iron is dissolved in a solid solution or present as precipitates. Increasing deformation prior to interannealing enhances precipitation of Al3Fe and some αh-AlFeSi precipitates. The softening kinetics subsequent to interannealing are faster by a factor 103 and the recrystallization texture changes from a retained rolling texture to a more typical Cube recrystallization texture.
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ESPOSITO, IARA M. "Caracterização e cinética de recristalização da liga de alumínio 6063 após tratamentos termomecânicos." reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11478.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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Dauda, Tamba Achiama. "Finite element modelling of hot rolling of Al-3%Mg and the kinetics of static recrystallisation." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366886.

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IGNACIO, JULIANO da S. "Processamento e análise digital de imagens em estudos da cinética de recristalização de ligas Al-Mg-X." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23301.

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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Espósito, Iara Maria. "Caracterização e cinética de recristalização da liga de alumínio 6063 após tratamentos termomecânicos\"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-14052012-105839/.

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A liga de alumínio 6063 possui um grande interesse industrial, apresentando características que justificam o seu uso mais freqüente quando comparadas às demais ligas de alumínio: a capacidade de endurecimento por precipitação (pois são termicamente tratáveis) aliada à facilidade de serem extrudadas. Estas ligas apresentam elevada ductilidade, que permite o seu uso em operações que acarretam elevados graus de deformação, como a extrusão. Por esse motivo, as ligas Al-Mg-Si apresentam a maior parte do volume de ligas extrudadas. Tendo em vista a freqüente utilização da liga de alumínio 6063, este trabalho estuda a caracterização e a recristalização da liga após a deformação plástica em diferentes graus de redução em área 20%, 50%, 70% e 90%, com tratamentos térmicos de 396ºC, 462ºC e 528ºC e com tempos de recozimento em 1minuto, 10 minutos e 100 minutos Tratamentos Termomecânicos. Observou-se como resultados de uma forma geral, que os tratamentos com 1minuto nas amostras de Al6063 houve pouca ou nenhuma alteração e ao aumentarmos o tempo de recozimento para 10 minutos e depois para 100 minutos os processos de recuperação/recristalização se tornam evidentes e o crescimento de também é observável para os tempos de tratamento em 100 minutos.
The aluminum 6063 alloy possesses a great industrial interest, presenting characteristics that justify its frequent use, when compared to the other aluminum alloys: the precipitation hardening and high cold work capacity. These alloys present high ductility, that allows their use in operations with high deformation degrees, as the cold work. The objective of this work is to show comparative analysis of the hardness Vickers of the commercial aluminum 6063 alloy, after cold work with different area reduction degree and thermal treatment. Considering the frequent utilization aluminium 6063 alloy, this work studies the caracterization and recristalization of this alloy, after the plastc deformation in different area reduction degrees, thermal treatment and convenient tratment times Termomechanic Tratments.
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Abraham, Stephanie. "Development and Implementation of a Kinetic Quantitative Analysis of Novel Small Molecule Ice Recrystallization Inhibitors." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/33189.

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The effects of ice recrystallization are well recognized throughout the literature. This phenomenon is the major cause of cellular damage during freezing and thawing of cells, ultimately reducing post-thaw viability and function. Herein, we describe a method for quantifying the inhibitory effect on ice recrystallization of novel small molecules that are cryoprotectants for red blood cells. The method is ideally suited to the splat-cooling assay, where ice high ice volume fractions are present. Using our method, we have derived first order rate constants for the increase of average crystal size based upon a “binning” approach of ice crystals as a function of size and time. Using this reliable metric, dose-response curves were constructed to obtain IC50 values. Two very effective inhibitors of ice recrystallization, PMP-Glc and pBrPh-Glc, were shown to have low IC50 values while Glc, a known ineffective inhibitor of ice recrystallization, did not. Furthermore, this kinetic approach was adapted to suit a condensed and simplified assay for the screening of new compounds for their ice recrystallization inhibition activity. This was accomplished through studying the initial rates from the binning approach and constructing dose-response curves that led to very comparable IC50 values when the full kinetic profile was assessed. This work therefore presents the quantification of ice recrystallization inhibition and the adaptation to a condensed screening assay for use in our laboratory.
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Mathevon, Alexandre. "Characterization and modelling of microstructural evolutions and mechanical properties during the thermal treatments of Dual-Phase steels." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI120.

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L'objectif de cette thèse était de contribuer au développement et à la compréhension des phénomènes physiques pilotant les évolutions microstructurales et les propriétés mécaniques des aciers Dual-Phase. Dans un souci d'utilisation sur les lignes de production industrielle, le développement d'outils numériques à champ moyen a été retenu, utilisables pour une large gamme de compositions chimiques et de cycle thermique. Une calibration des modèles sur des aciers ternaires provenant de coulées de laboratoire a été effectuée avant leur validation sur deux nuances industrielles. Un modèle de prédiction de la cinétique de recristallisation (MiReX) a été développé à partir de la composition chimique, du taux de réduction par laminage à froid et de leur état de précipitation prévu en utilisant un couplage avec un logiciel de prédiction de la cinétique de précipitation (Preciso). Un modèle pour la transformation de phase entre la ferrite et l'austénite, basé sur la minimisation de l'énergie du système global (GEM), a été proposé pour les traitements isothermes et anisothermes. Il reproduit la cinétique de la formation de l'austénite sur un cycle thermique industriel comprenant une rampe de chauffage et un maintien pour les systèmes quaternaires en tenant compte de la dissolution de la cémentite. Un modèle permettant de prédire la température du début de la transformation martensitique a également été développé pour les aciers bi-phasés, en tenant compte de la taille des grains austénitiques et de l'enrichissement en carbone et en manganèse à l'interface. Enfin, une nouvelle loi d'interaction basée sur les observations lors d'un essai de traction ex-situ a permis d'améliorer une prédiction modèle des propriétés mécaniques des aciers DP. La considération de l'étape de revenu de la martensite sur les propriétés des aciers DP a été proposée après l'analyse des mécanismes métallurgiques impliqués dans le revenu par des mesures de pouvoir thermoélectrique et de dureté
The aim of this thesis was to contribute to the development and understanding of the physical phenomena driving the microstructural evolutions and the mechanical properties of Dual-Phase steels. In a concern of use on industrial production lines, the development of physics-based mean-field numerical tools was retained, usable for a wide range of chemical composition and thermal cycle parameters. A calibration of the models on ternary steels from laboratory castings was carried out before their validation on two industrial grades. A model for predicting recrystallization kinetics (MiReX) was developed based on the chemical composition, the reduction ratio by cold rolling and their predicted precipitation state using a coupling with a software for predicting precipitation kinetics (Preciso). A model for the phase transformation between ferrite and austenite, based on the minimization of the global system energy (GEM), has been proposed for isothermal and anisothermal treatments. It reproduces the kinetics of austenite formation on an industrial thermal cycle including a heating ramp and holding for quaternary systems taking into account the dissolution of the cementite. A model for predicting the temperature of the beginning of martensitic transformation has also been developed for two-phase steels, taking into account austenitic grain size and carbon and manganese enrichment at the interface. Finally, a new interaction law based on observations during an ex-situ tensile test has allowed the improvement of a prediction model of the mechanical properties of DP steels. A consideration of the tempering step of martensite on the mechanical properties of DP steels has been proposed after the analysis of metallurgical mechanisms involved in tempering bythermoelectric power and hardness measurements
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Cabrera-Anaya, Juan Manuel. "Growth of zinc whiskers." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENI039/document.

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Les whiskers, filaments métalliques qui poussent sur des surfaces métalliques, sont unproblème très important pour la fiabilité des composants électroniques. Depuis ces dernièresannées, il y a eu un regain d’intérêts industriels dans le domaine de la croissance des whiskers,principalement en raison de la miniaturisation des dispositifs électroniques et des réglementationsenvironnementales interdisant l'utilisation du plomb.Alors que la plupart des recherches concernent les whiskers d'étain, il y a encore peu detravaux sur les whiskers de zinc. Les revêtements d’électrodéposés de zinc sont utilisés commeprotection anticorrosion pour les aciers faiblement alliés dans diverses industries, commel'automobile, l'aéronautique ou l'énergie, ainsi que dans les structures de soutien ou les planchersfaux plafonds dans les centres de données informatiques. Afin d'atténuer, de prévenir et deprédire les défaillances causées par les whiskers de zinc, les mécanismes de sa croissance doiventêtre compris.Grâce à des tests de stockage accéléré et à des observations par microscopie électronique àbalayage (MEB), la cinétique de croissance des whiskers de zinc a été étudiée sur des tôles d'acierau carbone faiblement allié, galvanisé et chromé. Afin de comprendre les mécanismes de lacroissance des whiskers de zinc, la caractérisation quantitative ainsi que les excroissances (densité,volume et vitesse de croissance) ont été reliées aux paramètres suivants: la température, le bainpour l’électrodéposition du zinc, la chromatation, l’épaisseur du substrat d’acier, l’épaisseur durevêtement de zinc ainsi que la contrainte résiduelle.En outre, la microstructure et la cristallographie du revêtement de zinc, des racines deswhiskers ainsi que des whiskers elles-mêmes ont été étudiées par diffraction des électronsrétrodiffusés (EBSD), microscopie électronique à transmission (MET), microanalyse par rayon X(EDX) et le dispositif ASTAR pour l'orientation locale des grains; la préparation des échantillonsa été réalisée à l’aide d’un faisceau d'ions focalisés (FIB). La recristallisation ainsi que lesdislocations dans les whiskers et les excroissances ont été observés; aucun composéintermétallique n’a été observé que ce soit dans les échantillons issus de différents bainsélectrolytes ou encore dans les films / whiskers.Il a été montré que la relaxation de contrainte de compression résiduelle et la croissance deswhiskers sont deux phénomènes différents mais fortement reliés et thermiquement activés.Chacun d'entre eux suit un mécanisme différent; les énergies d'activation apparentes des deuxphénomènes ont été établies, et la diffusion aux joints de grains est proposée comme le principalmécanisme de diffusion pour la croissance des whiskers.Des cinétiques de la croissance des whiskers, à la fois analytique et phénoménologique sontproposées. Une bonne estimation de la croissance des whiskers et de leur vitesse de croissance àdes températures proches des conditions de fonctionnement est obtenue par comparaison avecles données expérimentales
Whiskers, conductive metallic filaments that grow from metallic surfaces, are a very importantissue for reliability of electronic components. Through recent years, there has been a renewedindustrial interest on whisker growth, mainly due to the miniaturization of electronic devices andthe environmental regulations forbidding the use of lead.While most of the research has been focused on tin whiskers, there is still little reference tozinc whiskers. Electroplated zinc coatings are actually used as anticorrosive protection for lowalloy steels in diverse industries such as automotive, aerospace or energy, as well as for supportstructures or raised-floor tiles in computer data centers. In order to mitigate, prevent and predictthe failures caused by the zinc whiskers, the mechanisms of growth must be understood.By accelerated storage tests and Scanning Electron Microscopy (SEM) observation, kinetics ofgrowth of zinc whiskers was studied on low alloy chromed electroplated carbon steel.Quantitative characterization of both whisker and hillocks (density, volume and growth rate) wasrelated with the parameters temperature, electroplating electrolyte, presence of chrome, steelsubstrate thickness, zinc coating thickness and residual stress, in order to understand themechanisms of growth.Additionally, both microstructure and crystallography of zinc coating, whisker roots and actualwhiskers were studied by Electron Backscatter Diffraction (EBSD), Transmission ElectronMicroscopy (TEM), Energy-dispersive X-ray spectroscopy (EDX) and local grain orientationwith ASTAR setup, using Focused Ion Beam (FIB) for samples preparation. Recrystallization aswell as dislocations were observed in both whiskers and hillocks; no intermetallic compoundswere seen in neither electroplated nor whiskers.It is found that compressive residual stress relaxation and whiskers growth are two differentbut strongly interconnected phenomena both thermally activated, an each of them follows adifferent mechanism; apparent activation energies of the two phenomena are calculated, andgrain boundary diffusion is established as the main diffusion mechanism for whiskers growth.Whiskers growth kinetics, both analytical and phenomenological is proposed. Goodestimation of whiskers growth and whiskers growth rate at temperatures close to operationconditions is obtained when compared with experimental data
Whiskers, filamentos metálicos que crecen en superficies metálicas, son un problema muyimportante para la fiabilidad de componentes electrónicos. Durante los últimos años, ha habidoun renovado interés industrial en el crecimiento de whiskers, debido principalmente a laminiaturización de dispositivos electrónicos y a las regulaciones ambientales que prohíben lautilización de plomo.La mayoría de las investigaciones se concentran en los whiskers de estaño y hay todavía pocostrabajos sobre los whiskers de zinc. Los recubrimientos de zinc electrodepositado son utilizadoscomo protección anticorrosión para los aceros de baja aleación en diversas industrias, comoautomotriz, aeronáutica o energética, así como en la estructuras de soporte o tejas de techosfalsos en los centros de datos informáticos. Para atenuar, prevenir y predecir las fallas causadaspor los whiskers de zinc, los mecanismos de crecimiento deben ser comprendidos.Gracias a experimentos de almacenamiento de muestras y a observaciones por microscopíaelectrónica de barrido (SEM), la cinética de crecimiento de whiskers de zinc ha sido estudiada enaceros de baja aleación recubiertos de zinc y cromados. Para comprender los mecanismos decrecimiento de whiskers de zinc, la caracterización cuantitativa de whiskers y de protuberancias(densidad, volumen y velocidad de crecimiento) fue relacionada con los parámetros siguientes:temperatura, electrolito usado en la electrodeposición de zinc, cromado, espesor del substrato deacero, espesor del recubrimiento de zinc al igual que el estrés residual.Adicionalmente, microestructura y cristalografía del recubrimiento de zinc, de raíces dewhiskers así como de los propios whiskers fueron estudiadas por medio de la difracción deelectrones por retrodispersión (EBSD), microscopía electrónica de transmisión (TEM),microanálisis por rayos X (EDX) y el dispositivo ASTAR para la orientación local de granos; lapreparación de muestras fue realizada con la ayuda de un haz de iones localizados (FIB). Larecristalización así como las dislocaciones en whiskers y protuberancias fueron observadas;ningún compuesto intermetálico ha sido observado en los recubrimientos ni en los whiskers.Se determinó que la relajación del estrés residual de compresión y el crecimiento de whiskersson dos fenómenos diferentes pero fuertemente interconectados y térmicamente activados. Cadauno de ellos sigue un mecanismo diferente; las energías de activación aparentes de los dosfenómenos han sido establecidas, y la difusión por bordes de grano es propuesta como elprincipal mecanismo de difusión para el crecimiento de whiskers.Cinéticas de crecimiento de whiskers, a la vez analíticas y fenomenológicas son propuestas.Una buena estimación del crecimiento de whiskers y su velocidad de crecimiento a temperaturascercanas a las condiciones de operación es obtenida por comparación con los datosexperimentales
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Sarkar, Sujay. "Recovery and recrystallization kinetics of continuous and ingot cast AA5754." Thesis, 2003. http://hdl.handle.net/2429/14667.

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The influence of processing route (continuous casting versus ingot casting) on the recovery and recrystallization behaviour during isothermal annealing of cold rolled AA5754 was examined. Industrially produced continuous and ingot cast AA5754 material was supplied by Alcan and a series of annealing tests were conducted in a salt bath at temperatures ranging from 200°C to 375°C for various lengths of times. Recovery and recrystallization kinetics were examined by analyzing the change in the mechanical properties of the material as a function of time and temperature. Differences in the recrystallized microstructure for both the continuous and ingot cast AA5754 were also examined in terms of recrystallized grain size and recrystallized texture. The results of the present study indicate that the ingot cast AA5754 exhibits a faster recovery and recrystallization behaviour compared to the continuous cast material. The absence of the homogenization treatment in the continuous cast AA5754, has been identified as the critical difference in the processing. The homogenization step effects the evolution and distribution of the dispersoid precipitates and associated change in the solid solution content, which thereby influences the softening kinetics of the continuous cast material. The present study also provides a comprehensive characterization of final recrystallized microstructure for continuous and ingot cast AA5754.
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Books on the topic "Recrystallization kinetics"

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Chen, Shangping. Recovery & Recrystallization Kinetics in Aa1050 & Aa3003 Aluminum Alloys. Delft Univ Pr, 2003.

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Book chapters on the topic "Recrystallization kinetics"

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Mungole, M. N., Prakash C. Trivedi, Satyam Sharma, and R. C. Sharma. "Recrystallization Kinetics in 17Cr 1Mo Ferritic Steel." In Defect and Diffusion Forum, 79–83. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/3-908451-61-2.79.

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Hartel, Richard W. "Mechanisms and kinetics of recrystallization in ice cream." In The Properties of Water in Foods ISOPOW 6, 287–319. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4613-0311-4_14.

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Suwa, Yoshihiro, Y. Saito, and Hidehiro Onodera. "Phase-Field Modeling of Recrystallization - Effects of Second-Phase Particles on the Recrystallization Kinetics." In Materials Science Forum, 1189–94. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-443-x.1189.

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Migschitz, M., and W. Pfeiler. "Short-Range Order Kinetics in α-AuFe after Deformation and Recrystallization." In Stability of Materials, 713–18. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0385-5_58.

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Kundin, Julia. "Comparison of the Phase-Field Models to Predict the Recrystallization Kinetics." In TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings, 377–85. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51493-2_35.

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Zurob, Hatem S., G. Zhu, S. V. Subramanian, Gary R. Purdy, Christopher R. Hutchinson, and Yves Bréchet. "Analysis of Mn Effect on Recrystallization Kinetics in High Nb Steels." In Materials Science Forum, 123–30. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-981-4.123.

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Luo, Hai Wen, Lian Zi An, and Hong Wei Ni. "A New Approach to Model Heterogonous Recrystallization Kinetics Based on the Natural Inhomogeneity of Deformation." In Materials Science Forum, 1139–44. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-443-x.1139.

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Ji, Mo, Vit Janik, Martin Strangwood, and Claire Davis. "Effect of Grain Size Distribution on Recrystallisation Kinetics in a Fe-30Ni Model Alloy." In Proceedings of the 6th International Conference on Recrystallization and Grain Growth (ReX&GG 2016), 153–58. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48770-0_22.

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Ji, Mo, Vit Janik, Martin Strangwood, and Claire Davis. "Effect of Grain Size Distribution on Recrystallisation Kinetics in a Fe-30Ni Model Alloy." In Proceedings of the 6th International Conference on Recrystallization and Grain Growth (ReX&GG 2016), 153–58. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119328827.ch22.

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McNamara, C. T., S. L. Kampe, P. G. Sanders, and D. J. Swenson. "The Effect of Cold Work on the Precipitation and Recrystallization Kinetics in Al-Sc-Zr Alloys." In Light Metals 2013, 379–82. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118663189.ch66.

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Conference papers on the topic "Recrystallization kinetics"

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Rokon, S. M. N., M. S. Kaiser, and K. M. Shorowordi. "Fractional recrystallization kinetics in non-heat-treatable aluminium alloys." In Proceedings of the 13th International Conference on Mechanical Engineering (ICME2019). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0037948.

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Waryoba, D. R., and P. N. Kalu. "Quantification of Recrystallization Kinetics in Heavily Drawn OFHC Copper Wires by Microhardness Technique." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42251.

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Mechanical properties of materials are inherently dependent on the microstructures that evolve during processing. The microstruture of heavily drawn and annealed OFHC copper is inhomogeneous, and as such it is difficult to assess its recrystallization kinetics by conventional methods. In this article, restoration kinetics of static recrystallization of heavily drawn oxygen free high conducting (OFHC) copper wires has been investigated by microhardness technique. The investigation was carried out on two cold drawn wires deformed to a true strain of 2.31 and 3.10 and annealed at 250°C for annealing times ranging from 10 s to 1 hr. The physical phenomena during annealing were characterized and analyzed using optical microscopy and measurement of microhardness. A unified approach, through the use of microhardness data, for the analysis of the restoration kinetics of recovery, recrystallization, and grain growth has been proposed. In this approach, a JMAK (Johnson-Mehl-Avrami-Kolmogrov) model was expressed in terms of microhardness data, and the results showed that the modified model linked the different restoration kinetics and provided the critical time for the transition from recovery to recrystallization, and to grain growth. The model compared favorably with conventional models, which treat the different restoration kinetics separately. Exponents of about 0.4 for recovery, 4.0 for recrystallization, and 0.5 for grain growth, were obtained. The results also showed that the JMAK exponent, n, is of the same order of magnitude as the grain growth exponent, 1/p.
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Jian Wang and Hong Xiao. "Using Optimization Method to Determine the Dynamic Recrystallization Kinetics of Q235." In 2008 International Symposium on Information Science and Engineering (ISISE). IEEE, 2008. http://dx.doi.org/10.1109/isise.2008.152.

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Tripathy, Haraprasanna, Arun Kumar Rai, Raj Narayan Hajra, Subramanian Raju, and Saroja Saibaba. "Modelling the role of nucleation on recrystallization kinetics: A cellular automata approach." In DAE SOLID STATE PHYSICS SYMPOSIUM 2015. Author(s), 2016. http://dx.doi.org/10.1063/1.4947614.

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Yanushkevich, Z., A. Belyakov, C. Haase, D. A. Molodov, and R. Kaibyshev. "Recrystallization kinetics and texture evolution during annealing of cold-rolled high-Mn steel." In PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2017 (AMHS’17). Author(s), 2017. http://dx.doi.org/10.1063/1.5013913.

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Wu, Yujie, Qiang Yu, and Sven K. Esche. "Static Recrystallization Modeling With a Cellular Automata Algorithm." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82840.

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This paper reports on one part of a research project supported by NSF, which aims at developing a multi-scale methodology for systematic microstructure prediction in thermo-mechanical processing of metals. Based on combining mesoscopic microstructure models with macroscopic process formulations, the methodology is expected to provide universally applicable and accurate microstructure prediction capabilities. Cellular Automata (CA) models have been widely used in scientific studies of various microstructural phenomena. This paper discusses the modeling of the static recrystallization phenomenon by employing a regular CA algorithm. The recrystallization processes of single-phase systems under different nucleation conditions are simulated followed by the recrystallization kinetics analysis for 200 × 200 two-dimensional lattice. The performed simulations of static recrystallization confirm that the recrystallized volume fractions are time dependent. Furthermore, the simulated microstructures validate the following Johnson-Mehl-Avrami-Kolmogorov (JMAK) model according to which the recrystallized volume fraction is a sigmoidal function of time, and their evolution matches the JMAK equation with the expected exponents.
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Luo, Min, Chun Xu, Bing Zhou, Yan-hui Guo, and Rong-bin Li. "Static Recrystallization Behavior of a Nitrogen Controlled Z2CN19-10 Austenitic Stainless Steel." In ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-2746.

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In order to increase the hot workability and provide proper hot forming parameters for nitrogen controlled Z2CN19-10 austenitic stainless steel, the static recrystallization behavior was investigated by double-pass hot compression tests in the temperature range of 950–1100°C, initial grain size of 72μm–152μm, and the strain rates of 0.01, 0.1, 1, and 5 s−1. The tests were conducted with inter-pass times varying between 1 and 100 s after achieving a pass strain of 0.05, 0.1, 0.15 and 0.2 in the first pass on a Gleeble-1500 thermo-mechanical simulator. The static recrystallization fraction has been predicted by the 2 % offset stress method and verified by metallographic observations. The metallographic results indicate the crystallized grains generate at the cross of the prior austenite grain boundary and grow up. Also the kinetics of static recrystallization behavior for Z2CN19-10 steel are proposed. Experimental results show that the volume fraction of static recrystallization increases with the increase of deformation temperature, strain rates, pass strain and interval time, while it decreases with the increase of initial grain size. According to the present experimental results, the activation energy (Q) and Avrami exponent (n) was determined as 199.02kJ/mol and 0.69. The established equations can give a reasonable estimate of the static recrystallization behavior for Z2CN19-10 steel.
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Kermouche, Guillaume. "MEASURING/MODELLING RECRYSTALLIZATION KINETICS OF TUNGSTEN-BASED PLASMA-FACING COMPONENTS IN THE FRAMEWORK OF THERMONUCLEAR FUSION APPLICATIONS." In 2nd (ICAIC) International Conference for Academia and Industry Co-operation & 2nd (IMMSEM) International Meeting in Materials Science and Engineering of Maranhão. São Luís, Maranhão: Even3, 2021. http://dx.doi.org/10.29327/2ndicaic2ndimmsem2020.427660.

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Kawaguchi, Munemichi. "Phase-Field Model for Recrystallization of Impurities in Sodium Coolant." In 2021 28th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/icone28-65721.

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Abstract In researches and developments (R&Ds) on sodium (Na) management technology, the experimental data related to a cold trap and a plugging meter have been accumulated in each country because the impurities such as sodium oxide (Na2O), sodium hydride (NaH) and/or sodium hydroxide (NaOH) in Na coolant accelerate the corrosion on the stainless-steel surface. The cold trap has stainless-steel wire mesh and wall where the saturated impurities are recrystallized to remove the impurity in the Na coolant. Similarly, the plugging meter has stainless-steel orifice where the saturated impurities are recrystallized to measure the saturation concentration (plug temperature). The recrystallization is common physical chemistry phenomena, in which is dominated by the temperature and the concentration. To date, a phase-field model (PFM) has been developed extensively as a powerful tool to predict microstructure evolution of micro–meso scale. Especially, the PFM has some simulation merits: it can calculate movement of interface without explicit trace of the interface (calculate robustly the large deformation), and this simulation results are known to be consistent with the thermodynamics data. In this study, we developed the simulation models for complex recrystallization of one impurity in Na coolant using the PFM, and confirmed that the simulation results are reasonable for the experimental data with the operating experience. In the simulation results for the one impurity of Na2O or NaH, we concluded that the kinetics of recrystallization was determined by the solubility and/or diffusion behavior in liquid Na.
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Yu, Xinghua, Paul Crooker, Yanli Wang, and Zhili Feng. "High-Temperature Deformation Constitutive Law for Dissimilar Weld Residual Stress Modeling: Effect of Thermal Load on Strain Hardening." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45776.

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Weld residual stress is one of the primary driving forces for primary water stress corrosion cracking in dissimilar metal welds (DMWs). To mitigate tensile residual stress in DMWs, it is critical to understand residual stress distribution by modeling techniques. Recent studies have shown that weld residual stress prediction using today’s DMW residual stress models strongly depends on the strain-hardening constitutive model chosen. The commonly used strain-hardening models (isotropic, kinematic, and mixed) are all time-independent and inadequate to account for the time-dependent (viscous) plastic deformation at the elevated temperatures experienced during welding. For materials with profound strain-hardening, such as stainless steels and nickel-based alloys that are widely used in nuclear reactor and piping systems, the equivalent plastic strain — the determinate factor of the flow stress — can be highly dependent on the recovery and recrystallization processes. These processes are in turn a strong function of temperature, time, and deformation rate. Recently, the authors proposed a new temperature- and time-dependent strain-hardening constitutive model: the dynamic strain-hardening constitutive model. The application of such a model has resulted in improved weld residual stress prediction compared to the residual stress measurement results from the contour and deep-hole drilling methods. In this study, the dynamic strain-hardening behavior of Type 304 stainless steel and Alloy 82 used in pressure vessel nozzle DMWs is experimentally determined. The kinetics of the recovery and recrystallization of flow stress are derived from experiments, resulting in a semi-empirical equation as a function of pre-strain, time, and temperature that can be used for weld residual stress modeling. The method used in this work also provides an approach to study the kinetics of recovery and recrystallization of other materials with significant strain-hardening.
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