Journal articles: 'Dynamic recrystallisation'

1

Derby, B., and M. F. Ashby. "On dynamic recrystallisation." Scripta Metallurgica 21, no. 6 (June 1987): 879–84. http://dx.doi.org/10.1016/0036-9748(87)90341-3.

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Wheeler, John, Zhenting Jiang, David J. Prior, and Jan Tullis. "Dynamic Recrystallisation of Quartz." Materials Science Forum 467-470 (October 2004): 1243–50. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.1243.

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It is generally agreed that the driving force (plastic strain energy) is much too small to allow "classical" nucleation during static and dynamic recrystallisation, and that rotation/growth of subgrains is an alternative. The latter explanation predicts that new grains should begin at low angles to old grains. We have used electron backscatter diffraction on an experimentally deformed quartz polycrystal that has deformed by dislocation creep and partially recrystallised. In a region shortened by about 30% new grains are at high angles (much greater than 15º) to adjacent parent grains. A histogram of misorientation versus number of boundaries shows a gap at 15-20º. In its simple form we expect the subgrain rotation model to predict a spectrum of misorientations but with most of them being low angle. Instead, the histogram suggests that new boundaries began life as high-angle structures, so current models for deformation-induced nucleation require refinement.

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3

Roucoules, C., and P. D. Hodgson. "Post-dynamic recrystallisation after multiple peak dynamic recrystallisation in C–Mn steels." Materials Science and Technology 11, no. 6 (June 1995): 548–56. http://dx.doi.org/10.1179/mst.1995.11.6.548.

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Chen, Wei, Yanfei Gu, Yingping Guan, and Chunfa Dong. "Dynamic recrystallisation and modelling of microstructural evolution of high-titanium-content 6061 aluminium alloy." International Journal of Materials Research 111, no. 4 (May 1, 2020): 316–24. http://dx.doi.org/10.1515/ijmr-2020-1110407.

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Abstract The dynamic recrystallisation behaviour of high-titaniumcontent 6061 aluminium alloy was investigated by hot compression tests within the temperature range of 623- 783 K and at strain rates of 0.01 -10 s-1. The characteristics of the true stress-strain curves acquired in the hot compression tests were investigated, and it was observed that the dynamic recrystallisation of high-titanium-content 6061 aluminium alloy occurs within the range of deformation temperatures of 623 -783 K, with strain rates of 0.001 - 0.1 s-1as evinced by a physically-based constitutive analysis. The kinetic model of dynamic recrystallisation was deduced to describe the dynamic recrystallisation behaviour of high-titanium-content 6061 aluminium alloy, and the dynamic recrystallisation grain size model was also constructed.

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Buzolin, Ricardo Henrique, Leandro Henrique Moreno Guimaraes, Julián Arnaldo Ávila Díaz, Erenilton Pereira da Silva, Domonkos Tolnai, Chamini L. Mendis, Norbert Hort, and Haroldo Cavalcanti Pinto. "Restoration Mechanisms at Moderate Temperatures for As-Cast ZK40 Magnesium Alloys Modified with Individual Ca and Gd Additions." Crystals 10, no. 12 (December 16, 2020): 1140. http://dx.doi.org/10.3390/cryst10121140.

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The deformation behaviour of as-cast ZK40 alloys modified with individual additions of Ca and Gd is investigated at 250 °C and 300 °C. Compression tests were carried out at 0.0001 s−1 and 0.001 s−1 using a modified Gleeble system during in-situ synchrotron radiation diffraction experiments. The deformation mechanisms are corroborated by post-mortem investigations using scanning electron microscopy combined with electron backscattered diffraction measurements. The restoration mechanisms in α-Mg are listed as follows: the formation of misorientation spread within α-Mg, the formation of low angle grain boundaries via dynamic recovery, twinning, as well as dynamic recrystallisation. The Gd and Ca additions increase the flow stress of the ZK40, which is more evident at 0.001 s−1 and 300 °C. Dynamic recovery is the predominant restoration mechanism in all alloys. Continuous dynamic recrystallisation only occurs in the ZK40 at 250 °C, competing with discontinuous dynamic recrystallisation. Discontinuous dynamic recrystallisation occurs for the ZK40 and ZK40-Gd. The Ca addition hinders discontinuous dynamic recrystallisation for the investigated temperatures and up to the local achieved strain. Gd addition forms a semi-continuous network of intermetallic compounds along the grain boundaries that withstand the load until their fragmentation, retarding discontinuous dynamic recrystallisation.

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6

Medina, S. F., M. I. Vega, and Manuel Gómez. "Influence of TiN Particles on Dynamic and Static Recrystallization in Microalloyed Steels." Materials Science Forum 467-470 (October 2004): 1205–10. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.1205.

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This work has studied the influence of different Ti and N compositions on hot deformation strength by determining the peak stress of flow curves and the activation energy (dynamic recrystallisation). It has also assessed their influence on static recrystallisation by means of the statically recrystallised fraction versus time and the activation energy. A precipitate study performed by SEM and TEM has yielded a better understanding of the influence of the Ti/N ratio and precipitation state in hot deformation (dynamic and static recrystallisation). A correlation was found between for the finer distribution of precipitates, Ti/N ratio close to 1.5, smaller austenite grain, maximum activation energy for hot deformation (dynamic recrystallisation) and maximum activation energy for static recrystallisation.

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Tóth, L. S., A. Hildenbrand, and A. Molinari. "Dynamic recrystallisation in adiabatic shear bands." Le Journal de Physique IV 10, PR9 (September 2000): Pr9–365—Pr9–370. http://dx.doi.org/10.1051/jp4:2000961.

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8

Brechet, Y., Y. Estrin, and F. Reusch. "A dynamic recrystallisation criterion: DRX map." Scripta Materialia 39, no. 9 (October 1998): 1191–97. http://dx.doi.org/10.1016/s1359-6462(98)00317-0.

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9

LLORENS, MARIA-GEMA, ALBERT GRIERA, PAUL D. BONS, JENS ROESSIGER, RICARDO LEBENSOHN, LYNN EVANS, and ILKA WEIKUSAT. "Dynamic recrystallisation of ice aggregates during co-axial viscoplastic deformation: a numerical approach." Journal of Glaciology 62, no. 232 (March 18, 2016): 359–77. http://dx.doi.org/10.1017/jog.2016.28.

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ABSTRACTResults of numerical simulations of co-axial deformation of pure ice up to high-strain, combining full-field modelling with recrystallisation are presented. Grain size and lattice preferred orientation analysis and comparisons between simulations at different strain-rates show how recrystallisation has a major effect on the microstructure, developing larger and equi-dimensional grains, but a relatively minor effect on the development of a preferred orientation of c-axes. Although c-axis distributions do not vary much, recrystallisation appears to have a distinct effect on the relative activities of slip systems, activating the pyramidal slip system and affecting the distribution of a-axes. The simulations reveal that the survival probability of individual grains is strongly related to the initial grain size, but only weakly dependent on hard or soft orientations with respect to the flow field. Dynamic recrystallisation reduces initial hardening, which is followed by a steady state characteristic of pure-shear deformation.

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10

Tam, Kenneth J., Matthew W. Vaughan, Luming Shen, Marko Knezevic, Ibrahim Karaman, and Gwénaëlle Proust. "Modelling dynamic recrystallisation in magnesium alloy AZ31." International Journal of Plasticity 142 (July 2021): 102995. http://dx.doi.org/10.1016/j.ijplas.2021.102995.

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Yue, C. X., L. W. Zhang, S. L. Liao, J. B. Pei, H. J. Gao, Y. W. Jia, and X. J. Lian. "Dynamic recrystallisation kinetics of GCr15 bearing steel." Materials Research Innovations 12, no. 4 (December 2008): 213–16. http://dx.doi.org/10.1179/143307508x362864.

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12

Gottstein, G., L. Chang, and H. F. Yung. "Dynamic recrystallisation and microstructural evolution in Ni3Al." Materials Science and Technology 7, no. 2 (February 1991): 158–66. http://dx.doi.org/10.1179/mst.1991.7.2.158.

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13

Derby, B. "Dynamic recrystallisation: The steady state grain size." Scripta Metallurgica et Materialia 27, no. 11 (December 1992): 1581–85. http://dx.doi.org/10.1016/0956-716x(92)90148-8.

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14

Kostryzhev, Andrii G., Abdullah Al Shahrani, Chen Zhu, Simon P. Ringer, and Elena V. Pereloma. "Effect of Austenitising and Deformation Temperatures on Dynamic Recrystallisation in Nb-Ti Microalloyed Steel." Materials Science Forum 753 (March 2013): 431–34. http://dx.doi.org/10.4028/www.scientific.net/msf.753.431.

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An investigation into the influence of the reheat temperature and the austenite deformation temperature on Nb precipitation and recrystallisation kinetics was carried out for a steel containing 0.081C–0.021Ti–0.064Nb (wt. %). Thermo-mechanical processing was carried out using a Gleeble 3500 simulator. The austenite grain structure was correlated to the dispersive properties of Nb atom clustering and precipitation. Irrespective of the reheat temperature, deformation to 0.75 strain at 1075 °C produced a fully recrystallised austenitic microstructure. After deformation at 975 °C, only partial recrystallisation was observed in the samples reheated to the higher temperature, whereas samples reheated to the lower temperature were fully recrystallised. The influence of solute drag and particle pinning effects on the recrystallisation rate is discussed.

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15

Imbert, C. A. C., and H. J. McQueen. "Dynamic recrystallisation of D2 and W1 tool steels." Materials Science and Technology 16, no. 5 (May 2000): 532–38. http://dx.doi.org/10.1179/026708300101508036.

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16

shijie, Zhou, Liu hengquan, and Huang nan. "Effect of original grain size on microstructure and properties of extruded Mg-2Zn-0.2Mn biomedical alloy." Integrated Ferroelectrics 201, no. 1 (September 2, 2019): 231–40. http://dx.doi.org/10.1080/10584587.2017.1331418.

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Magnesium is a biocompatible and biodegradable metal, which has attracted much interest in biomedical engineering. Cast magnesium alloy shows the low strength and plasticity at ambient temperature. Microstructure, mechanical properties and degradation properties of the extrusion pressed magnesium alloy have been investigated for biomedical application in detail by optical microscopes, mechanical properties testing and corrosion testing. The magnesium alloy ingots were gained by different cooling rate. Then the ingots were extrude into bar at the same processing condition. The results show that the cooling rate of cast ingot is important factors that affect the properties of Mg alloy by dynamic recrystallisation extruding. The cooling rate of cast ingot has been successfully applied to control the microstructure, mechanical and degradation properties of the Mg alloy. Optical microscopy observation has indicated that the grain size of the dynamic recrystallisation extruding has been significantly decreased from fast cooling cast magnesium ingot, which has mainly contributed to the high tensile strength and good elongation. Fasting cooling rate of cast ingot and dynamic recrystallisation extruding has provided moderate corrosion resistance, which has opened a new window for materials design, especially for biomedical.

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17

Fan, X. H., M. Li, D. Y. Li, Y. C. Shao, S. R. Zhang, and Y. H. Peng. "Dynamic recrystallisation and dynamic precipitation in AA6061 aluminium alloy during hot deformation." Materials Science and Technology 30, no. 11 (April 2014): 1263–72. http://dx.doi.org/10.1179/1743284714y.0000000538.

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18

Zhou, H. T., Z. D. Zhang, and Q. Li. "Dynamic recrystallisation of Mg–6Zn–2Nd–0·5Zr alloy." Materials Science and Technology 23, no. 6 (June 2007): 657–60. http://dx.doi.org/10.1179/174328407x179638.

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19

Xie, G. L., X. T. Wang, and L. Chen. "Microstructural modelling of dynamic recrystallisation in Nb microalloyed steels." Materials Science and Technology 28, no. 7 (July 2012): 778–82. http://dx.doi.org/10.1179/1743284712y.0000000027.

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20

Kim, S. I., B. C. Ko, C. M. Lee, S. K. Hwang, and Y. C. Yoo. "Evolution of dynamic recrystallisation in AISI 304 stainless steel." Materials Science and Technology 19, no. 12 (December 2003): 1648–52. http://dx.doi.org/10.1179/026708303225008284.

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21

Elwazri, A. M., P. Wanjara, and S. Yue. "Critical condition for dynamic recrystallisation of high carbon steels." Materials Science and Technology 20, no. 11 (November 2004): 1469–73. http://dx.doi.org/10.1179/026708304x4259.

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22

Sakai, T., and M. Ohashi. "Dislocation substructures developed during dynamic recrystallisation in polycrystalline nickel." Materials Science and Technology 6, no. 12 (December 1990): 1251–57. http://dx.doi.org/10.1179/mst.1990.6.12.1251.

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23

Kratochvíl, P., P. Lukáč, P. Vostrý, J. Pacák, and J. Tomeš. "Dynamic softening and static recrystallisation of AISI 321 steel." Materials Science and Technology 7, no. 1 (January 1991): 78–82. http://dx.doi.org/10.1179/mst.1991.7.1.78.

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24

Galindo-Nava, E. I., and C. M. F. Rae. "Microstructure evolution during dynamic recrystallisation in polycrystalline nickel superalloys." Materials Science and Engineering: A 636 (June 2015): 434–45. http://dx.doi.org/10.1016/j.msea.2015.03.121.

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25

Poletti, Cecilia, Romain Bureau, Peter Loidolt, Peter Simon, Stefan Mitsche, and Mirjam Spuller. "Microstructure Evolution in a 6082 Aluminium Alloy during Thermomechanical Treatment." Materials 11, no. 8 (July 30, 2018): 1319. http://dx.doi.org/10.3390/ma11081319.

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Thermomechanical treatments of age-hardenable wrought aluminium alloys provoke microstructural changes that involve the movement, arrangement, and annihilation of dislocations, the movement of boundaries, and the formation or dissolution of phases. Cold and hot compression tests are carried out using a Gleeble® 3800 machine to produce flow data as well as deformed samples for metallography. Electron backscattered diffraction and light optical microscopy were used to characterise the microstructure after plastic deformation and heat treatments. Models based on dislocation densities are developed to describe strain hardening, dynamic recovery, and static recrystallisation. The models can describe both the flow and the microstructure evolutions at deformations from room temperatures to 450 °C. The static recrystallisation and static recovery phenomena are modelled as a continuation of the deformation model. The recrystallisation model accounts also for the effect of the intermetallic particles in the movements of boundaries.

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26

Muszka, K., Lin Sun, Bradley P. Wynne, Eric J. Palmiere, and Mark W. Rainforth. "Influence of Strain Path on Microstructure Evolution of Low Carbon Steels." Materials Science Forum 638-642 (January 2010): 3418–23. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.3418.

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Changes in strain path represent one of the most important processing parameters that characterise hot metal forming processes. In the present study, the effect of strain path change on dynamic recrystallisation, strain-induced precipitation processes and phase transformation behaviour in plain carbon and Nb-microalloyed steels was investigated. To assess the effect of strain-path change, forward/forward and forward/reverse torsion tests were conducted. It has been shown that the strain reversal delays the dynamic recrystallisation kinetics whereas its effect on strain-induced precipitation process of Nb(C,N) is rather negligible. Also the onset of austenite-ferrite transformation is delayed; its products however doesn’t change significantly. This can be due to the fact that ferrite nucleation density plays the second order role compared to the geometry of deformation.

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27

Babalola, Saheed Adeoye, Kenneth Kanayo Alaneme, Samuel Ranti Oke, Lesley Heath Chown, Nthabiseng Beauty Maledi, and Michael Oluwatosin Bodunrin. "Hot compression behaviour and microstructural evolution in aluminium based composites: an assessment of the role of reinforcements and deformation parameters." Manufacturing Review 8 (2021): 6. http://dx.doi.org/10.1051/mfreview/2021004.

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The response of two different types of aluminium matrix composites (AMCs) reinforced with silicon carbide ceramic particulates or nickel metallic particulates to hot compression testing parameters was evaluated. The composites were produced via two-step stir-casting technique. Axisymmetric compression testing was performed on the samples at different deformation temperatures of 220 and 370 °Ϲ, 0.5 and 5 s−1 strain rates and total strains of 0.6 and 1.2. The initial and post-deformed microstructures were studied using optical and scanning electron microscopy. The results show that flow stress was significantly influenced by imposed deformation parameters and the type of reinforcements used in the AMCs. Nickel particulate reinforced aluminium matrix composite (AMC) showed superior resistance to deformation in comparison with silicon carbide reinforced AMC under the different testing conditions. In both AMCs, work hardening, dynamic recovery and dynamic recrystallisation influenced their response to imposed parameters. The signature of dynamic recrystallisation was very apparent in aluminium matrix composite reinforced with nickel particulates.

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28

Zhang, Qifan, Xiangdong Huo, Liejun Li, Songjun Chen, and Chao Lu. "Correlation between Precipitation and Recrystallisation during Stress Relaxation in Titanium Microalloyed Steel." Metals 12, no. 11 (November 9, 2022): 1920. http://dx.doi.org/10.3390/met12111920.

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This study investigated the correlation between strain-induced precipitation (SIP) and static recrystallisation (SRX) in Ti microalloyed steel during stress relaxation after controlled compression. The final compression temperature strongly influenced the order of SIP and SRX and thus the evolution of the austenite structure. Precipitation-time-temperature (PTT) curve obtained for the experimental steel exhibited an inverted “S” shape. A recrystallisation kinetics model revealed that SRX, which occurs preferentially above 940 °C, resulted in delayed subsequent SIP, thus causing deviation in the PTT curve from the typical ‘C’ shape. Below 940 °C, the fastest nose temperature for precipitation was located at 900 °C, and the precipitate was constituted by TiC particles with a NaCl-type FCC structure. The dynamic competition between SIP and SRX processes were evaluated by comparing the relative magnitude of the recrystallisation driving force and precipitation pinning force during stress relaxation, combined with the evolution of precipitate and austenitic structure. The results indicated that the plateau period occurred because of the precipitation pinning effect inhibited recrystallisation-induced austenite softening. However, the non-uniform distribution of SIP restricted the mobility of the boundaries to a portion of the austenite grains, resulting in abnormal grain growth during the plateau period.

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Okeke, Saviour I., Noel M. Harrison, and Mingming Tong. "Computational modelling of dynamic recrystallisation of Ni-based superalloy during linear friction welding." International Journal of Advanced Manufacturing Technology 119, no. 7-8 (January 12, 2022): 4461–84. http://dx.doi.org/10.1007/s00170-021-08559-1.

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AbstractLinear friction welding (LFW) is an advanced joining technology used for manufacturing and repairing complex assemblies like blade integrated disks (blisks) of aeroengines. This paper presents an integrated multiphysics computational modelling for predicting the thermomechanical-microstructural processes of IN718 alloy (at the component-scale) during LFW. Johnson–Mehl–Avrami-Kolmogorov (JMAK) model was implemented for predicting the dynamic recrystallisation of γ grain, which was coupled with thermomechanical modelling of the LFW process. The computational modelling results of this paper agree well with experimental results from the literature in terms of γ grain size and weld temperature. Twenty different LFW process parameter configurations were systematically analysed in the computations by using the integrated model. It was found that friction pressure was the most influential process parameter, which significantly affected the dynamic recrystallisation of γ grains and weld temperature during LFW. The integrated multiphysics computational modelling was employed to find the appropriate process window of IN718 LFW.

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30

Sommitsch, Christof, M. Walter, F. Wedl, and Siegfried Kleber. "Modeling and Investigation of Dynamic Recrystallisation in Nickel-Based Superalloys." Materials Science Forum 426-432 (August 2003): 743–48. http://dx.doi.org/10.4028/www.scientific.net/msf.426-432.743.

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31

Varela-Castro, Gonzalo, José-María Cabrera, and José-Manuel Prado. "Critical Strain for Dynamic Recrystallisation. The Particular Case of Steels." Metals 10, no. 1 (January 16, 2020): 135. http://dx.doi.org/10.3390/met10010135.

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The knowledge of the flow behavior of metallic alloys subjected to hot forming operations has particular interest for metallurgists in the practice of industrial forming processes involving high temperatures (e.g., rolling, forging, and/or extrusion operations). Dynamic recrystallisation (DRX) occurs during high temperature forming over a wide range of metals and alloys, and it is known to be a powerful tool that can be used to control the microstructure and mechanical properties. Therefore, it is important to know, particularly in low stacking fault energy materials, the precise time at which DRX is available to act. Under a constant strain rate condition, and for a given temperature, such a time is defined as a critical strain (εc). Unfortunately, this critical value is not always directly measurable on the flow curve; as a result, different methods have been developed to derive it. Focused on carbon and microalloyed steels subjected to laboratory-scale testing, in the present work, the state of art on the critical strain for the initiation of DRX is reviewed and summarized. A review of the different methods and expressions for assessing the critical strain is also included. The collected data are well suited to feeding constitutive models and computational codes.

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32

Zou, D. N., R. Liu, Y. Han, W. Zhang, K. Wu, and X. H. Liu. "On dynamic recrystallisation under hot working of superaustenitic stainless steel." Materials Science and Technology 30, no. 4 (December 6, 2013): 411–17. http://dx.doi.org/10.1179/1743284713y.0000000406.

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Fukumoto, S., H. Tsubakino, M. Aritoshi, T. Tomita, and K. Okita. "Dynamic recrystallisation phenomena of commercial purity aluminium during friction welding." Materials Science and Technology 18, no. 2 (February 2002): 219–25. http://dx.doi.org/10.1179/026708301225000635.

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34

Katsas, S., R. Dashwood, R. Grimes, M. Jackson, G. Todd, and H. Henein. "Dynamic recrystallisation and superplasticity in pure aluminium with zirconium addition." Materials Science and Engineering: A 444, no. 1-2 (January 2007): 291–97. http://dx.doi.org/10.1016/j.msea.2006.08.096.

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Derby, B. "The dependence of grain size on stress during dynamic recrystallisation." Acta Metallurgica et Materialia 39, no. 5 (May 1991): 955–62. http://dx.doi.org/10.1016/0956-7151(91)90295-c.

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36

Subramanian, S. V., G. Zhu, Christian Klinkenberg, and Klaus Hulka. "Ultra-Fine Grain Size by Dynamic Recrystallization in Strip Rolling of Nb Microalloyed Steel." Materials Science Forum 475-479 (January 2005): 141–44. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.141.

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The design of base chemistry and optimization of rolling schedule are the two important factors that influence large strain accumulation in multi-pass rolling in order to obtain ultra-fine grain size by dynamic recrystallization. A base chemistry of 0.03C-0.003N-0.08Nb-0.015Ti-1.8Mn (all in weight %) of HTP steel design was chosen in order to control the time evolution of strain induced precipitation of NbC and the strain accumulation through precipitate interaction with recovery and recrystallization at short inter-pass times characteristic of strip rolling. Experimental data on the critical strain for static and dynamic recrystallisation for HTP steel are used in a quantitative model to predict strain accumulation pass by pass and to achieve grain refinement by dynamic recrystallisation through large strain accumulation. The model is used to optimize the time-temperature-deformation schedule to prevent static recrystallization during the inter-pass times and to target ultra-fine grain size through dynamic recrystallization by large strain accumulation. The model predictions are validated by simulation of strip rolling of HTP steel on the thermo-mechanical simulator (WUMSI) to obtain a uniform ultra-fine ferrite grain size of about 1.5 micrometer diameter in final ferrite microstructure.

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Yi, Sang Bong, Dietmar Letzig, Kerstin Hantzsche, Rodolfo Gonzalez Martinez, Jan Bohlen, Igor Schestakow, and Stefan Zaefferer. "Improvement of Magnesium Sheet Formability by Alloying Addition of Rare Earth Elements." Materials Science Forum 638-642 (January 2010): 1506–11. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.1506.

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The influences of rare earth elements addition on the crystallographic texture and microstructural evolutions are examined during rolling and annealing of Mg-sheets. In case of Nd or Y additions, dynamic recrystallisation is suppressed such that the deformed microstructure is observed after hot rolling with relatively large strain per pass. Cold rolled binary Mg-Nd alloy sheet shows strong texture with splitting of the basal poles in the rolling direction, however, the texture intensity decreases significantly during the recrystallisation annealing. From the comparison of deep drawing behaviours between commercial ZE10 and AZ31 sheets, it is observed that the addition of the rare earth elements and accompanying texture changes result in the improved formability.

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38

Lv, Jiaxin, Jing-Hua Zheng, Victoria A. Yardley, Zhusheng Shi, and Jianguo Lin. "A Review of Microstructural Evolution and Modelling of Aluminium Alloys under Hot Forming Conditions." Metals 10, no. 11 (November 16, 2020): 1516. http://dx.doi.org/10.3390/met10111516.

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Microstructural evolution during hot forming of aluminium alloys plays a critical role in both the material flow behaviour during the deformation and the post-form mechanical properties in service. This paper presents a comprehensive review on the recrystallisation mechanisms, the interrelations between microstructures and macroscopic responses, and the associated modelling methods for aluminium alloys under hot forming conditions. Particular attention is focused on dynamic recrystallisation (DRX), which occurs during hot forming. The mechanisms, key features, and conditions of occurrence (forming temperature, strain rates, etc.) during hot forming for each type of DRX type are classified. The relationships between microstructures and macroscopic responses, including the flow behaviour, the post-form strength and ductility, are summarised based on existing experimental results. Most importantly, the associated modelling work, describing the recrystallisation and the viscoplastic behaviour under hot forming conditions, is grouped into four types, to enable a clear and concise understanding of the existing quantitative micro–macro interactions, which are particularly valuable for the future development of advanced physically based multi-scale modelling work for hot-forming processes in aluminium alloys.

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Brooks, Jeffery W., S. Tin, and R. P. Guest. "The Validation of Microstructural Prediction in Nickel Superalloys." Materials Science Forum 539-543 (March 2007): 3064–69. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.3064.

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Forged parts, specifically designed for the validation of microstructural models, have been manufactured in Inconel alloy 718 using a wide range of thermo-mechanical histories. The microstructural evolution observed in the forged samples has been compared with predictions from two models for dynamic recrystallisation and grain growth.

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40

Lu, Ya Lin, Xing Cheng Li, Hong Jin Wang, and Xiao Ping Li. "Deformation Behavior of AZ31 Magnesium Alloy at Elevated Temperature." Advanced Materials Research 652-654 (January 2013): 1976–79. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.1976.

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Hot compression test for AZ3l magnesium alloy at deformation temperatures of 523-723K and strain rates of 0.01-10s-1 were carried out using Gleeble-3500 thermo-mechanical simulator. The experimental results show that the flow stress and microstructure vary apparently with deformation process parameters. Microstructure observations show that dynamic recrystallisation (DRX) takes place during the deformation. The characteristic with the dynamic recrystallization change with the process parameters.

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41

Chu, X. R., S. X. Lin, Z. M. Yue, J. Gao, and C. S. Zhang. "Research of initial dynamic recrystallisation for AZ31 alloy with pulse current." Materials Science and Technology 31, no. 13 (April 24, 2015): 1601–6. http://dx.doi.org/10.1179/1743284715y.0000000013.

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42

Mao, P. L., G. Y. Su, and K. Yang. "Dynamic recrystallisation of as cast austenite in 18–8 stainless steel." Materials Science and Technology 18, no. 8 (August 2002): 892–96. http://dx.doi.org/10.1179/026708302225004793.

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Zahiri, S. H., and P. D. Hodgson. "The static, dynamic and metadynamic recrystallisation of a medium carbon steel." Materials Science and Technology 20, no. 4 (April 2004): 458–64. http://dx.doi.org/10.1179/026708304225012071.

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Stewart, G. R., A. M. Elwazri, S. Yue, and J. J. Jonas. "Modelling of dynamic recrystallisation kinetics in austenitic stainless and hypereutectoid steels." Materials Science and Technology 22, no. 5 (May 2006): 519–24. http://dx.doi.org/10.1179/026708306x81478.

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Phaniraj, M. P., Y. S. Jang, D. I. Kim, J. H. Shim, C. Y. Lee, and D. L. Lee. "Dynamic recrystallisation in aluminium alloyed hypereutectoid steels under hot working conditions." Materials Science and Technology 26, no. 6 (June 2010): 714–19. http://dx.doi.org/10.1179/026708309x12454008169357.

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Gottstein, G., L. Chang, and H. F. Yung. "Dynamic recrystallisation and microstructural evolution in Ni₃Al." Materials Science and Technology 7, no. 2 (February 1, 1991): 158–66. http://dx.doi.org/10.1179/026708391790194879.

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Pussegoda, L. N., P. D. Hodgson, and J. J. Jonas. "Design of dynamic recrystallisation controlled rolling schedules for seamless tube rolling." Materials Science and Technology 8, no. 1 (January 1992): 63–71. http://dx.doi.org/10.1179/026708392790169821.

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Xia, Xiaoxin, P. Sakaris, and H. J. McQueen. "Hot deformation, dynamic recovery, and recrystallisation behaviour of aluminium 6061–SiCpcomposite." Materials Science and Technology 10, no. 6 (June 1994): 487–96. http://dx.doi.org/10.1179/mst.1994.10.6.487.

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Ding, R., and Z. X. Guo. "Microstructural modelling of dynamic recrystallisation using an extended cellular automaton approach." Computational Materials Science 23, no. 1-4 (April 2002): 209–18. http://dx.doi.org/10.1016/s0927-0256(01)00211-7.

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Manonukul, A., and F. P. E. Dunne. "Dynamic recrystallisation in a copper/stainless steel pseudo-two-phase material." Materials Science and Engineering: A 293, no. 1-2 (November 2000): 173–84. http://dx.doi.org/10.1016/s0921-5093(00)01034-0.

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Journal articles on the topic 'Dynamic recrystallisation'

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