Observation and modeling of dynamic recrystallization in high-strain, high-strain rate deformation of metals

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	Observation and modeling of dynamic recrystallization in high-strain, high-strain rate deformation of metals
	M. A. Meyers; V. F. Nesterenko; J. C. LaSalvia; Y. B. Xu; Q. Xue
	2000
发表期刊	Journal De Physique Iv
ISSN	1155-4339
卷号	10 期号:P9 页码:51-56
摘要	The microstructural evolution inside shear bands was investigated experimentally and analytically. A fine recrystallized structure (grains with 0.05-0.3 mu m) is observed in Ti, Cu, 304 stainless steel, Al-Li, and Ta, and it is becoming clear that a recrystallization mechanism is operating. The fast deformation and short cooling times inhibit grain-boundary migration; it is shown that the time is not sufficient for migrational recrystallization. A rotational mechanism is proposed and presented in terms of dislocation energetics. This mechanism necessitates the stages of high dislocation generation and their organization into elongated cells. Upon continued deformation. the cells become sub-grains with significant misorientations. These elongated sub-grains break up into equiaxed grains with size of approximately 0.05-0.3 mu m. It is shown that grain-boundary reorientation can operate within the time of the deformation process.
部门归属	univ calif san diego, dept mae, la jolla, ca 92093 usa. usa, res lab, aberdeen proving ground, md 21005 usa. chinese acad sci, inst met res, shenyang, peoples r china.;meyers, ma (reprint author), univ calif san diego, dept mae, la jolla, ca 92093 usa
关键词	Shear-band Formation Tantalum Titanium
URL	查看原文
WOS记录号	WOS:000089710300010
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37137
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. A. Meyers,V. F. Nesterenko,J. C. LaSalvia,et al. Observation and modeling of dynamic recrystallization in high-strain, high-strain rate deformation of metals[J]. Journal De Physique Iv,2000,10(P9):51-56.
APA	M. A. Meyers,V. F. Nesterenko,J. C. LaSalvia,Y. B. Xu,&Q. Xue.(2000).Observation and modeling of dynamic recrystallization in high-strain, high-strain rate deformation of metals.Journal De Physique Iv,10(P9),51-56.
MLA	M. A. Meyers,et al."Observation and modeling of dynamic recrystallization in high-strain, high-strain rate deformation of metals".Journal De Physique Iv 10.P9(2000):51-56.