Thematische Bibliographien / Metallurgical powder

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Auswahl der wissenschaftlichen Literatur zum Thema „Metallurgical powder“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 7. Februar 2022

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Zeitschriftenartikel zum Thema "Metallurgical powder"

Eck, R., H. P. Martinz, T. Sakaki und M. Kato. „Powder metallurgical chromium“. Materials Science and Engineering: A 120-121 (November 1989): 307–12. http://dx.doi.org/10.1016/0921-5093(89)90755-7.

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Liu, Na, Zhou Li, Hua Yuan, Wen Yong Xu, Yong Zhang und Guo Qing Zhang. „Powder Metallurgical Processing of Ti6Al4V Alloy“. Advanced Materials Research 217-218 (März 2011): 1336–42. http://dx.doi.org/10.4028/www.scientific.net/amr.217-218.1336.

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Ti6Al4V powders were produced by Argon gas atomization, the powder fraction ＜ 250μm was hot isostatically pressed (HIP) at 920°C and 140MPa. The properties of pre-alloyed powders and the compact were investigated in this paper. Powder particles are almost perfectly spherical. The microstructure of powder surface is approximate hexagonal cellular structure, the inner structure exhibits cellular αphase and needle-like martensiteα′ phase, these are resulting from the rapid solidification. After HIP, Ti6Al4V alloy has a Widmanstaten microstructure consisting of continuous grain boundary α（GBα）phase and β transformation structure, the grain size of GBα phase is in the range of 5～15μm . The tensile test at room temperature shows that strength of samples is 880MPa, the fracture surface exhibits obvious brittle cleavage fracture features including cleavage facets with river pattern and a few elongate dimples of different sizes and big voids at localized area.

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Liu, Hu Ran. „The Profile Calculation and the Best Fillet of Powder Metallurgical Gears“. Materials Science Forum 694 (Juli 2011): 851–54. http://dx.doi.org/10.4028/www.scientific.net/msf.694.851.

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this paper researched the profile calculation and the best fillet of powder metallurgical gears. Different from the ordinary gears, we must research the locals of the cutter to make the die of the powder metallurgical gears. And it is possible to revise the fillet in order to increase the bending strength of the powder metallurgical gears.

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Jasper, Bruno, Jan W. Coenen, Johann Riesch, Till Höschen, Martin Bram und Christian Linsmeier. „Powder Metallurgical Tungsten Fiber-Reinforced Tungsten“. Materials Science Forum 825-826 (Juli 2015): 125–33. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.125.

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The composite material tungsten fiber-reinforced tungsten (Wf/W) addresses the brittleness of tungsten by extrinsic toughening through introduction of energy dissipation mechanisms. These mechanisms allow the release of stress peaks and thus improve the materials resistance against crack growth. Wf/W samples produced via chemical vapor infiltration (CVI) indeed show higher toughness in mechanical tests than pure tungsten. By utilizing powder metallurgy (PM) one could benefit from available industrialized approaches for composite production and alloying routes. In this contribution the PM method of hot isostatic pressing (HIP) is used to produce Wf/W samples. A variety of measurements were conducted to verify the operation of the expected toughening mechanisms in HIP Wf/W composites. The interface debonding behavior was investigated in push-out tests. In addition, the mechanical properties of the matrix were investigated, in order to deepen the understanding of the complex interaction between the sample preparation and the resulting mechanical properties of the composite material. First HIP Wf/W single-fiber samples feature a compact matrix with densities of more than 99% of the theoretical density of tungsten. Scanning electron microscopy (SEM) analysis further demonstrates an intact interface with indentations of powder particles at the interface-matrix boundary. First push-out tests indicate that the interface was damaged by HIPing.

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Kruzhanov, Vladislav, und Volker Arnhold. „Energy consumption in powder metallurgical manufacturing“. Powder Metallurgy 55, Nr. 1 (Februar 2012): 14–21. http://dx.doi.org/10.1179/174329012x13318077875722.

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Kruth, J. P., B. Van der Schueren, J. E. Bonse und B. Morren. „Basic Powder Metallurgical Aspects in Selective Metal Powder Sintering“. CIRP Annals 45, Nr. 1 (1996): 183–86. http://dx.doi.org/10.1016/s0007-8506(07)63043-1.

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Chen, Wei Ping, Dong Hui Yang, Jun Lu, Yuan Feng, Jian Qing Chen, Lei Wang, Jing Hua Jiang und Ai Bin Ma. „Fabrication of Zn Alloy Foam via Powder Metallurgical Approach“. Materials Science Forum 849 (März 2016): 819–24. http://dx.doi.org/10.4028/www.scientific.net/msf.849.819.

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Powder metallurgical (PM) route is one of the methods for metal foam fabrication. In this paper, we report the fabrication of Zn alloy foams with 0~50wt.% Mg via powder metallurgical approach by using CaCO3 as the blowing agent. The fabrication process included 5 steps: powders mixing, cool-pressing, heat treatment, hot-pressing, foaming and cooling. The effects of Mg addition, foaming temperature on the foaming process were discussed. Finally, the compressive behavior of Zn alloy foam was evaluated.

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Čapek, Jaroslav, und Dalibor Vojtěch. „Powder Metallurgical Techniques for Fabrication of Biomaterials“. Manufacturing Technology 15, Nr. 6 (01.12.2015): 964–69. http://dx.doi.org/10.21062/ujep/x.2015/a/1213-2489/mt/15/6/964.

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Jones, D. G. R., J. P. Fairclough, J. S. Abell und I. R. Harris. „Powder metallurgical processing of Tb0.27Dy0.73Fe2−x(0“. Journal of Applied Physics 69, Nr. 8 (15.04.1991): 5774–76. http://dx.doi.org/10.1063/1.347872.

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Prado, Jose Manuel. „Plastic Behaviour of Green Powder Metallurgical Compacts“. Materials Science Forum 534-536 (Januar 2007): 305–8. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.305.

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The results of monotonic and cyclic uniaxial compression tests, in which the deviatoric component of the stress is predominant, carried out on green and recrystallized iron compacts with different levels of density are presented and discussed in order to analyse the macro and micromechanisms governing the mechanical behaviour of non-sintered PM materials. The plastic deformation of the particles, especially at the contact areas between neighbouring particles, produces an internal friction responsible for the main features observed in the behaviour of green metallic compacts. These experimental results show important discrepancies with the plasticity models, Cam-Clay and Drucker-Prager Cap, used to simulate the powder compaction stage. Possible causes for these discrepancies are pointed out.

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Dissertationen zum Thema "Metallurgical powder"

Kero, Ida. „Ti3SiC2 synthesis by powder metallurgical methods“. Licentiate thesis, Luleå tekniska universitet, Materialvetenskap, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17858.

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The MAX phases constitute a group of ternary ceramics which has received intense attention over the last decade due to their unique combination of properties. The Ti3SiC2 is the most well studied MAX phase to date and it has turned out to be a promising candidate for high temperature applications. It is oxidation resistant, refractory and not susceptible to thermal shock, while at the same time it can be machined with conventional tools which is of great technological importance. Most attempts to synthesize bulk Ti3SiC2 have involved pure titanium in the starting powder mixtures, but Ti powder is oxidising and requires an inert atmosphere throughout the synthesis process which makes the procedures unsuitable for large scale production. The aim of the first part of this study was to delineate the influence of sintering time and temperature on the formation of Ti3SiC2 from a starting powder which does not contain pure titanium. Titanium silicon carbide MAX phase was synthesised from ball milled TiC/Si powders, sintered under vacuum for different times and temperatures. After heat treatment the samples were evaluated using scanning electron microscopy (SEM) and x-ray diffraction (XRD). This study showed that TiC was always present in the final products whereas TiSi2 was an intermediate phase to the Ti3SiC2 formation. The highest amount of Ti3SiC2 was achieved for short holding times of 2-4 hours, at high temperatures, 1350-1400¢ªC. More elevated temperatures or extended times resulted in silicon loss and decomposition of Ti3SiC2. In the second part of this study the sintering reactions and the mechanisms of formation of Ti3SiC2 were investigated by x-ray diffractometry, thermodilatometry, thermogravimetry, differential scanning calorimetry and mass spectrometry. TiC/Si powders of the different ratios; 3:2 and 3:2.2, were heated to different temperatures under flowing argon gas in a dilatometer and examined by XRD. The TiC/Si powder samples of the ratio 3:2 were further investigated by the other thermal analysis methods. The results confirmed the presence of the intermediate phase TiSi2. From 1500¢ªC silicon evaporation and MAX phase decomposition were observed, and the results show that the MAX phase formation may be concurrent with the melting of silicon. TiC was always present in the final products, either as a reactant or as a decomposition product. The extra silicon of the 3:2.2 TiC/Si powder significantly increased the Ti3SiC2 conversion and no intermediate phases were observed for this powder mixture. The Si of these samples did not melt or evaporate, and only minor decomposition was observed even at 1700¢ªC. These results indicate that the silicon content of the initial powder mixture is decisive to the reaction mechanisms of the sintering process.

Godkänd; 2007; 20070523 (ysko)

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Kero, Ida. „Ti₃3SiC₂ synthesis by powder metallurgical methods /“. Luleå : Luleå tekniska universitet/Tillämpad fysik, maskin- och materialteknik/Materialteknik, 2007. http://epubl.ltu.se/1402-1757/2007/34/.

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Stüpp, César Augusto. „Powder metallurgical processing of magnesium-hydroxyapatite composites for biomedical applications“. reponame:Repositório Institucional da UFSC, 2015. https://repositorio.ufsc.br/xmlui/handle/123456789/159631.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2015.
Made available in DSpace on 2016-03-01T04:00:54Z (GMT). No. of bitstreams: 1 337500.pdf: 167170234 bytes, checksum: febf5b6bf3b44787af43f7794c3d6e26 (MD5) Previous issue date: 2015
Abstract : Biodegradable metal alloys are a new class of implant materials suitable for implants such as stents, bone plates and screws. The corrosion of magnesium alloys might provide a new mechanism where they could be used as degradable metal implants to be applied in musculo-skeletal surgery. In this case, a secondary surgery for implant retrieval is not needed. For that, magnesium alloys with controlled in vivo corrosion rates need to be developed. There is a high demand to design magnesium alloys with adjustable corrosion rates and suitable mechanical properties. An approach to this challenge is a magnesium metal matrix composite (Mg-MMC) composed of the magnesium alloy ZK60 and hydroxyapatite (HA) particles for tailoring its properties such as mechanical properties and corrosion resistance. The composite was produced by mechanical alloying followed by hot extrusion. HA in contact with molten magnesium releases toxic gases like phosphine (PH3), so solid-state processing such as mechanical milling and extrusion is feasible. This work presents the influence of different amounts of HA on the degradation behavior and mechanical properties, which shows that the HA addition has a substantial increase in the compression strength (up to 14% for 20 wt.% HA addition) and no negative effect on the controlled degradation behavior of this biomaterial.

Ligas metálicas biodegradáveis são uma nova classe de materiais de implante adequados para a cirurgia óssea. A corrosão de ligas de magnésio pode proporcionar um novo mecanismo onde tais ligas podem ser utilizadas como implantes metálicos degradáveis a serem aplicados em cirurgia músculo-esquelética. Nestes casos, a segunda cirurgia para retirada do implante não seria necessária. Para isso, ligas de magnésio com taxas de corrosão in vivo controladas precisam ser desenvolvidas. Há uma grande procura para projetar ligas de magnésio com taxas de corrosão ajustáveis e propriedades mecânicas aplicáveis. Uma abordagem a este desafio é um compósito de matriz metálica (CMM) composto pela liga de magnésio ZK60 e hidroxiapatita (HA) para aperfeiçoar suas propriedades como resistência mecânica e resistência à corrosão. O compósito é produzido via moagem de alta energia seguida de extrusão à quente. Uma vez que HA em contato com magnésio líquido libera gases tóxicos como fosfina (PH3), esta é a melhor forma de sua produção. Este trabalho mostra a influência de diferentes quantidades de hidroxiapatita na taxa de degradação e propriedades mecânicas do compósito, as quais evidenciam um aumento substancial na resistência à compressão com a adição de HA (até 14% para o compósito com 20% de HA), sem detrimento às propriedades de degradação controlada do biomaterial.

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Ma, Taoran. „Powder-metallurgical processing and phase separation in ternary transition metal carbides“. Doctoral thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-207839.

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Ternary transition metal cubic carbides have high hardness and are potential carbides in cemented carbide and cermet tools, as well as hard coatings used to improve metal cutting performance. In the present work, (Ti,Zr)C, (V,Nb)C, and (V,Ta)C ternary cubic carbides were synthesized using traditional powder-metallurgical methods. The effect of synthesis temperature and starting materials on synthesis is investigated, and the microstructure evolution during aging is studied. (Ti,Zr)C was found to decompose into lamellae upon aging at the temperature range from 1150 to 1800 °C. A similar microstructure was observed in (V,Ta)C and (V,Nb)C- 0.5 wt% Fe. All of these structures were found to form through discontinuous precipitation.The grain misorientation distribution of (Ti,Zr)C aged at 1400 °C is investigated. It was found that decomposition tends to occur at high-angle grain boundaries above 25°. The hardness of as-synthesized (Ti,Zr)C powder was found to be 41±6 GPa. Fully decomposed (Ti,Zr)C particles were found to be slightly harder than the undecomposed counterpart. On the other hand, in (V,Nb)C-0.5 wt% Fe, the decomposed structure formed upon aging at 1200 °C was found to have a hardness of 26±2 GPa, which is basically the same as the unaged alloy.Furthermore, the sintering behavior of (Ti,Zr)C with WC-Co is investigated. There are two γ-phases in the final microstructure, one TiC-rich and one ZrC-rich. (Ti,Zr)C was found to decompose at an early stage of sintering, and the final grain size of WC and the two γ-phases was found to be 10% smaller than that in a reference WC-TiC-ZrC-Co composite.

QC 20170529

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Erdem, Derya. „Microwave Sintering And Characterization Of Soft Magnetic Powder Metallurgical Ni-fe Alloys“. Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613550/index.pdf.

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In this study, prealloyed austenitic stainless steel and premixed soft magnetic Ni-Fe permalloy compacts were consolidated through microwave and conventional sintering routes at combinations of various sintering temperatures and compaction pressures. Sintered alloys were characterized in terms of their densification, microstructural evolution as well as mechanical and magnetic properties. The effect of sintering method in terms of the applied sintering parameters on the final properties of the compacts were investigated in a comparative manner. It was determined that microwave sintered permalloys are superior compared to their conventionally sintered counterparts in densification response, microstructural characteristics such as pore shape and distribution as well as mechanical properties for both austenitic stainless steel and permalloy compacts. However, permeability of the microwave sintered permalloys was inferior to their conventionally sintered counterparts in some cases due to microstructural refinement associated with microwave sintering route.

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Payton, Eric John. „Characterization and Modeling of Grain Coarsening in Powder Metallurgical Nickel-Based Superalloys“. The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250265477.

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Fredriksson, Wendy. „Depth Profiling of the Passive Layer on Stainless Steel using Photoelectron Spectroscopy“. Doctoral thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-179399.

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The physical properties of the protective passive films formed on the surface of stainless steels under electrochemical polarization in different electrolytes were studied. The structure of these films was analyzed as a function of depth using photoelectron spectroscopy (PES). Depth profiling (using PES) of the surface layer was achieved by either changing the angle of incidence to achieve different analysis depths (ARXPS), by argon ion etching, or by varying the energy of the incoming x-rays by the use of synchrotron radiation. The use of hard x-rays with high resolution (HAXPES) provided novel quantified information about the nickel content underneath the passive films. A complex environment was found in these surface layers composed of an outermost monolayer of iron on top of a layer of chromium hydroxides covering an underlayer of chromium oxides. Molybdenum was enriched in the interface between the metal and oxide. Nickel is enriched underneath the passive film and therefore nickeloxides are only present in the surface layer in low concentrations. A comparison was performed on austenitic and duplex stainless prepared by hot isostatically pressed (HIP) or cast and forged processes. HIP stainless steel was produced using the burgeoning technique of pressing gas atomized powders together. The structure of these steels is far more homogenous with a lower porosity than that of the conventionally prepared equivalents. It was shown that hot HIP austenitic steel had better pitting corrosion resistance than its conventional counterpart. Finally, the duplex steel was cycled in a Li-ion battery to explore its potential application as a current collector. It was shown that the passive film formed in the organic solvents is similar in composition and thickness to the films formed in aqueous solutions. However, it is doubtful if steel could be used as current collector in batteries due to its high reactivity with lithium.

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Seemüller, Hans Christoph Maximilian [Verfasser], und M. [Akademischer Betreuer] Heilmaier. „Evaluation of Powder Metallurgical Processing Routes for Multi-Component Niobium Silicide-Based High-Temperature Alloys / Hans Christoph Maximilian Seemüller. Betreuer: M. Heilmaier“. Karlsruhe : KIT-Bibliothek, 2016. http://d-nb.info/1100529713/34.

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Seemüller, Hans Christoph Maximilian [Verfasser], und Martin [Akademischer Betreuer] Heilmaier. „Evaluation of Powder Metallurgical Processing Routes for Multi-Component Niobium Silicide-Based High-Temperature Alloys / Hans Christoph Maximilian Seemüller. Betreuer: M. Heilmaier“. Karlsruhe : KIT-Bibliothek, 2016. http://nbn-resolving.de/urn:nbn:de:swb:90-544644.

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Kewes, Eloi. „Silicon grinding and fine particles : generation and behavior of metallurgical-grade silicon fine particles during grinding for the silicones industry“. Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0030/document.

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La poudre de silicium métallurgique (MG-Si, pureté 99 %) ont été étudiées, en se focalisant particulièrement sur les particules fines (taille comprise entre 1 et 10 μm) Ce matériau est utilisé dans l’industrie siliconière pour la synthèse directe du diméthyldichlorosilane et est obtenu par broyage de blocs de silicium. Les propriétés de cette poudre sont cruciales pour le procédé industriel, à la fois en termes de surface spécifique, composition chimique et coulabilité. Comprendre l’influence des particules fines, qui dégradent la coulabilité, et leur origine au cours du broyage est donc d’une importance cruciale. Une nouvelle caractérisation, chimique et cristallographique, des poudres de MG-Si montre que les particules fines sont en moyennes moins chargées en éléments d’alliage que les particules plus grosses. La structure cristalline du silicium est inchangée au cours du broyage, sauf pour les particules superfines (taille inférieure à 1 μm). Celles-ci présentent des zones amorphes : cela montre qu’elles sont soumises à des contraintes plus importantes au cours du broyage, comme cette transformation étant obtenue au-delà d’un seuil de pression. Le comportement du MG-Si en broyage a été étudié pour la première fois. A l’échelle de la particule unique, il est confirmé que les fissures suivent une propagation transgranulaire. De plus, des particules fines peuvent être produites au cours d’un unique événement de broyage, en raison de l’activation simultanée de multiples systèmes de fissures qui peuvent brancher entre elles. La taille critique en-deçà de laquelle la déformation plastique est énergétiquement plus favorable que la propagation de fissure a été estimée à environ 1 μm par une méthode basée sur l’indentation. Ces deux résultats sont cohérents avec la répartition des éléments d’alliages en fonction de la taille de particule. A l’échelle multiparticulaire, une étude pilote en broyeur à tambour tournant a été menée. Les résultats de cette étude ne sont pas disponibles dans cette version publique du manuscrit. Veuillez vous reporter au manuscrit complet. Les conséquences sur la coulabilité de la présence de particules fines dans la poudre de MG-Si produite par broyage ont été caractérisées par mesures d’angle de repos, de dynamique de compaction et en fluidisation. En particulier, un nouveau comportement d’élutriation a été identifié et décrit : l’élutriation séquentielle se produit lorsque des particules fines sont initialement présentes dans le lit fluidisé et se caractérise par l’envolement d’abord des inférieures à environ 30 μm puis seulement des particules de taille supérieure. Ce comportement n’est pas observé en l’absence de fines dans le lit initial. L’explication de ce phénomène pourrait se trouver dans la formation de clusters polydisperses, formés seulement en présence de particules fines. En parallèle de l’élutriation séquentielle, des mesures électrostatiques avec un électromètre externe à la colonne ont montré la présence de potentiels très importants (10 kV), dont le signe correspond à la gamme de taille de particules envolées. Ceci suggère que l’adhésion au sein des clusters pourrait être électrostatique
Metallurgical-grade silicon (MG-Si, 99 %) powders were extensively investigated, particularly focusing on the fine particles (whose size is between 1 and 10 μm) comprised in these powders. This material is a reactant widely used in the silicones industry for the Direct Synthesis and is obtained by size reduction of millimetric silicon lumps. Powder properties are major stakes of the industrial process. Smaller sizes favor high specific surfaces and high rates of production, but can decrease the lowability, thus inducing poor heat evacuation resulting in hot spots and a decrease in selectivity. Such lowability issues are particularly associated with fine particles, hence understand the generation of these particles during grinding is of critical importance. New chemical and crystallographic characterization of MG-Si is presented, showing that fine particles contain on average less alloying elements than larger particles, yet their crystallographic structure is preserved through grinding. On the contrary, superfine particles (smaller than 1 μm) exhibit amorphous zones: this transformation is pressure induced, showing that these particles experience larger stresses during the grinding step. The behavior of MG-Si in grinding mills has been studied for the first time. At the single particle level, it has been confirmed that transgranular fracture is preferred in MG-Si. Moreover, fine particles can be produced from a single fracture event, due to multiple crack propagation and branching. The critical size under which plastic deformation preferentially occurs over fracture has been evaluated to be approximately 1 μm. These two facts are consistent with a lower level of impurities in fines, yet remaining crystalline, and with superfines exhibiting amorphous areas. At the multiple particle level, pilot scale batch milling experiments have been performed. The results are not included in this public version of the manuscript, please refer to the full manuscript. The consequences of the presence of fine particles in ground MG-Si powder on lowability has been assessed by means of angle of repose, compaction tests and fluidization experiments. A new elutriation behavior has been observed and characterized: for naturally ground MS-Si powders (including fine particles), particles smaller than 30 μm are entrained first, then only larger particles. This was not the case in absence of fine particles. The explanation may probably lie within the presence of polydisperse clusters, formed only in presence of fine particles. Parallel to this elutriation behavior, electrostatic measurements with an external electrometer showed that high potential with sign correlated with the type of particle elutriated are attained during elutriation. This may suggest that electrostatics is responsible for cluster formation

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Bücher zum Thema "Metallurgical powder"

P, Beiss, Dalal K, Peters R, Huppmann W. J und Metal Powder Industries Federation, Hrsg. International atlas of powder metallurgical microstructures. Princeton, N.J: MPIF, 2002.

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Huiping, Tang, Hrsg. Fen mo ye jin tai ji jie gou cai liao: Powder metallurgical titanium base structural materials. Changsha Shi: Zhong nan da xue chu ban she, 2012.

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Jones, David Geraint Rhys. The study of hydrogen in REFe [inferior] 2 (RE=Rare Earth) giant magnetostrictive laves phase compounds andits application to their powder metallurgical processing. Birmingham: University of Birmingham, 1992.

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Adaskin, Anatoliy, Aleksandr Krasnovskiy und Tat'yana Tarasova. Materials science and technology of metallic, non-metallic and composite materials. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1143245.

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Book 1 of the textbook consists of two parts. Part I describes the structure of metallic, non-metallic, and composite materials. Technologies of production of metal materials are considered: metallurgical production of ferrous and non-ferrous metals; powder metallurgy; technologies of production of non-metallic materials: polymers, glass, graphite; technologies of production of composite materials, including semi-finished products-prepregs, premixes. Part II is devoted to methods for studying the properties of materials. Metal materials, technologies of their hardening by thermal, chemical-thermal treatment, and plastic deformation are considered. The features of organic and inorganic nonmetallic materials, as well as the possibility of changing their properties, are given. Composite materials are widely covered, and the areas of their rational application are shown. Revised chapter 14, which deals with intelligent materials. Meets the requirements of the federal state educational standards of higher education of the latest generation. For bachelors and undergraduates studying in groups of training areas 15.00.00 "Mechanical Engineering" and 22.00.00 "Materials Technologies". It can be used for training graduate students of engineering specialties, as well as for advanced training of engineering and technical workers of machine-building enterprises.

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All, India Seminar on Metallurgical Problems in Power Projects (1987 Lucknow India). All India Seminar on Metallurgical Problems in Power Projects: Proceedings, October 30-31, 1987. Lucknow: Institution of Engineers (India), Uttar Pradesh State Centre, 1987.

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Salʹnikov, V. G. Ėffektivnye sistemy ėlektrosnabzhenii͡a︡ predprii͡a︡tiĭ t͡s︡vetnoĭ metallurgii. Moskva: Metallurgii͡a︡, 1986.

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Hosler, Dorothy. The sounds and colors of power: The sacred metallurgical technology of ancient West Mexico. Cambridge, Mass: MIT Press, 1994.

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Czajkowski, C. Metallurgical evaluation of an 18-inch feedwater line failure at the Surry Unit 2 power station. Atlanta, GA: Region II, U.S. Nuclear Regulatory Commission, 1987.

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Shanghai jing ji qu gong ye gai mao: Shanghai ye jin, dian li juan. Shanghai Shi: Xue lin chu ban she, 1986.

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Kravchenko, Igor. Technological processes in the technical service of machinery and equipment. ru: INFRA-M Academic Publishing LLC., 2017. http://dx.doi.org/10.12737/25226.

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Described in the textbook theoretical bases, organizational aspects of technical service of machinery and equipment, and the use of resource-saving technologies of recovery and strengthening. Methods are described for the deposition of coatings of various functional purposes, equipment and materials. Summarizes the results of theoretical and experimental studies of domestic and foreign researchers. Reviewed test methods and properties of the coatings, and given the scope of their effective use at the enterprises of technical service. Meets the requirements of Federal state educational standard of higher education of the last generation. Addressed to students of undergraduate and graduate students by specialty "Agroengineering" and technical workers agricultural, engineering, power, metallurgical and other industries.

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Buchteile zum Thema "Metallurgical powder"

Beiss, P., und P. Neumann. „7 Powder metallurgical filters“. In Powder Metallurgy Data, 504–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/10689123_26.

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Eck, R., W. Köck und G. Kneringer. „“Creep of Powder Metallurgical Chromium”“. In Mechanics of Creep Brittle Materials 2, 202–17. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3688-4_18.

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Prado, Jose Manuel. „Plastic Behaviour of Green Powder Metallurgical Compacts“. In Progress in Powder Metallurgy, 305–8. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-419-7.305.

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Kainer, K. U., J. Schroder und B. L. Mordike. „Powder Metallurgical Production of Whisker Reinforced Magnesium“. In Developments in the Science and Technology of Composite Materials, 171–76. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-1123-9_23.

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Gornik, Christian, und Jochen Perko. „Comprehensive Wear Study on Powder Metallurgical Steels for the Plastics Industry, Especially Injection Moulding Machines“. In Progress in Powder Metallurgy, 657–60. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-419-7.657.

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Li, Jia-lin, Yong-fu Yu, Wen Chen und Xiao-yin Liu. „Study on Limonite Powder by Flash-Magnetic Roasting“. In 5th International Symposium on High-Temperature Metallurgical Processing, 311–18. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118887998.ch39.

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Benzeşik, Kağan, Ahmet Turan und Onuralp Yücel. „A New Approach for the Production of Li4SiO4 Powder“. In 11th International Symposium on High-Temperature Metallurgical Processing, 561–67. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36540-0_50.

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Brocchi, Eduardo, Douglas Torres, Rogério Navarro, Rodrigo Souza und José Brant. „Chemical Processing of a High Carbon FeCr Alloy Fine Powder“. In 6th International Symposium on High-Temperature Metallurgical Processing, 223–30. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119093381.ch29.

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Tunçer, Buket, Mehmet Buğdaycı und Onuralp Yücel. „Production of CrB2 Powder Via Self Propagating High Temperature Synthesis“. In 6th International Symposium on High-Temperature Metallurgical Processing, 211–14. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48217-0_27.

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Brocchi, Eduardo, Douglas Torres, Rogério Navarro, Rodrigo Souza und José Brant. „Chemical Processing of a High Carbon FeCr Alloy Fine Powder“. In 6th International Symposium on High-Temperature Metallurgical Processing, 223–30. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-48217-0_29.

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Konferenzberichte zum Thema "Metallurgical powder"

Matikas, Theodore E., Prasanna Karpur und Robert L. Crane. „Ultrasonic measurement of elastic moduli of porous powder metallurgical samples“. In Nondestructive Evaluation Techniques for Aging Infrastructure and Manufacturing, herausgegeben von Steven R. Doctor, Carol A. Nove und George Y. Baaklini. SPIE, 1996. http://dx.doi.org/10.1117/12.259075.

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Yi, Chew Pei, You Ah Heng und Vijayaram Thoguluva Raghavan. „Fabrication and characterization of Cu pellet using Powder Metallurgical method“. In 2012 10th IEEE International Conference on Semiconductor Electronics (ICSE). IEEE, 2012. http://dx.doi.org/10.1109/smelec.2012.6417178.

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Pettersson, Ola. „Isostatic Dry Bag Compacted Powder Metallurgical Cylinder Liner, Applications and Properties“. In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1992. http://dx.doi.org/10.4271/920219.

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Yin, Xiaowei, Chaogang Lou, Xiaobing Zhang, Wei Lei und Kai Hou. „Field Emission From the Carbon Nanotube Cathode Fabricated by Powder Metallurgical Method“. In 2006 19th International Vacuum Nanoelectronics Conference. IEEE, 2006. http://dx.doi.org/10.1109/ivnc.2006.335213.

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Ibraheem, F. H. „Modified pyro-metallurgical technology for recovery of impurities from crude lead using chalk powder“. In PETROLEUM 2012. Southampton, UK: WIT Press, 2012. http://dx.doi.org/10.2495/pmr120261.

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Choi, Gwangbo, Seokjun Ha, Guhyun Kim und Inbum Jung. „Improvement of soft magnetic properties of Fe-Si-Al metal powder cores by metallurgical process“. In 2012 IEEE Vehicle Power and Propulsion Conference (VPPC). IEEE, 2012. http://dx.doi.org/10.1109/vppc.2012.6422781.

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Nastic, A., B. Jodoin, D. Poirier und J. G. Legoux. „Powder Impact Temperature Influence on Metallurgical Bonding—An Investigation for Soft Particle Deposition on Hard Substrate“. In ITSC2021, herausgegeben von F. Azarmi, X. Chen, J. Cizek, C. Cojocaru, B. Jodoin, H. Koivuluoto, Y. C. Lau et al. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.itsc2021p0189.

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Abstract Segregating the convoluted effects of particle size; impact temperature and velocity on deposition behavior and adhesion is of utmost interest to the cold spray field. The current study aims to associate the particle impact behavior and adhesion to its in-flight characteristics by studying and decoupling the influence of particle size; temperature and velocity for single particle impacts and full coatings. Experimental results reveal that in-situ peening processes contribute to the adhesion at low impact temperature while η (V.VC) controls the adhesion/cohesion at increased particle impact temperatures. The benefits of both bonding mechanisms are discussed in terms of measured adhesion/cohesion; bend-to-break fracture surfaces; pseudoplasticity; deposition efficiency and critical velocity. Computational fluid dynamics (CFD) results provide individual particle trajectory; size; temperature and velocity; of successfully deposited particles; which have led to the observed signs of metallurgical bonding.

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Stringer, Craig, Andy Wright und Pete Imbrogno. „Powder Metallurgical Solution for a Complex Geometry Coupler Requiring High Dimensional Stability and Microstructural Uniformity through Heat Treatment“. In HT2021. ASM International, 2021. http://dx.doi.org/10.31399/asm.cp.ht2021p0017.

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Abstract Powder metallurgy (PM) is the fabrication process of compacting metal powders to shape and sintering these compacts to yield the final material’s properties. The PM compaction process allows for complex geometries to be formed that would normally lead to long and expensive machining processes from wrought steels. Special alloy selection can allow for hardening of the microstructure during the sintering procedure. The sinter hardened (SH) alloys exhibit good mechanical properties along with good hardenability and dimensional stability and may be a suitable replacement for wrought steels where low distortion from heat treatment or microstructural control is required. In this study, it was found for a complex geometry coupler application, a SH alloy could successfully replace an austenitizing heat treatment process with a low carbon steel. The low carbon steel was found to have micro heterogeneities from heat treatment that lead to premature failure in the application. Dimensional distortion and production variance were also of concern with the low carbon steel. The SH material demonstrated acceptable physical properties, hardness and microstructural uniformity to solve the concerns associated with processing of the low carbon steel coupler. Post processing optimization also added to the life performance of the coupler by tailoring the final microstructure to mating components.

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Langerman, Michael A., Gregory A. Buck, Umesh A. Korde und Vojislav D. Kalanovic. „Thermal Control of Laser Powder Deposition: Heat Transfer Considerations“. In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60386.

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Laser based solid free-form fabrication is an emerging metallurgical forming process aimed at rapid production of high quality, near net shape products directly from starting powders. Laser powder deposition shares, with other free-form technologies, the common characteristic that part fabrication occurs directly from a 3-D computer aided design (CAD) model. The microstructure evolution and resulting material properties of the component part (strength, ductility, etc.) fabricated using laser deposition are dependent upon process operating parameters such as melt pool size, laser power, head (manipulator) speed, and powder flow rate. Presently, set points for these parameters are often determined through manual manipulation of the system control and trial and error. This paper discusses the development of a path-planning, feed-forward, process-driven control system algorithm that generates a component part thermal history within given constraints, thereby assuring optimal part quality and minimizing final residual stresses. A thermal model of the deposition process drives the control algorithm. The development of the thermal model is the subject of this paper. The model accounts for temperature-dependent properties and phase change processes. Model validation studies are presented including comparisons with known analytic solutions as well as comparisons with data from experiments conducted in the laser laboratory at SDSM&T.

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Eboo, G. M., und A. G. Blake. „Laser Cladding of Gas Turbine Components“. In ASME 1986 International Gas Turbine Conference and Exhibit. American Society of Mechanical Engineers, 1986. http://dx.doi.org/10.1115/86-gt-298.

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Using dynamic powder feed it is now possible to laser hardface many low grade metallic materials with high grade alloy, ceramic, and superalloy coatings. A wide variety of components from pump housings, turbine blades, oil field drilling equipment to automobile and construction equipment can be laser hardfaced with superior metallurgical results and cost savings. This paper examines laser dynamic powder feed technology applied to gas turbine and other industrial components.

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Berichte der Organisationen zum Thema "Metallurgical powder"

Fraser, Hamish L., und James C. Williams. Metallurgical Factors Influencing Direct Laser Deposition of Metallic Powers for Unitized Structures. Fort Belvoir, VA: Defense Technical Information Center, Januar 2005. http://dx.doi.org/10.21236/ada435779.

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