Microstructure evolution and tensile properties of pure Ti subjected to rapidly heating and quenching

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	Microstructure evolution and tensile properties of pure Ti subjected to rapidly heating and quenching
	W. S. Zhao; W. Zhang; J. Y. Guo; B. Q. Wang; J. D. Guo; K. Lu
	2006
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	22 期号:2 页码:190-194
摘要	The pure alpha-Ti samples were heated at an extremely high rate (similar to 10(6) K/s) to the temperature of 0 phase zone followed by a rapidly quenching in an electro-pulsing treatment. After the treatment, micrometer-thick lamellar substructures were generated within the original equiaxed alpha-Ti coarse grains. Misorientations across adjacent lamellae are of a few degrees. The ultrafine lamellar substructures originated from a non-equilibrium alpha-beta-alpha' phase transformation during rapidly heating-quenching process with a short exposure time at high temperatures. Tensile strength was increased by about 100 MPa due to the formation of the ultrafine lamellar substructure while the same tensile plasticity (elongation-to-failure) was maintained relative to the original sample. The strengthening effect could be attributed to the effective blockage of dislocation motions by a high density of sub-boundaries.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhao, ws (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;wszhao@yahoo.com.cn
关键词	Pure Ti Microstructure Properties Rapidly Heating Substructure Zirconium Titanium Alloys
URL	查看原文
WOS记录号	WOS:000236590000010
引用统计	被引频次：5[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/321006/34744
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. S. Zhao,W. Zhang,J. Y. Guo,et al. Microstructure evolution and tensile properties of pure Ti subjected to rapidly heating and quenching[J]. Journal of Materials Science & Technology,2006,22(2):190-194.
APA	W. S. Zhao,W. Zhang,J. Y. Guo,B. Q. Wang,J. D. Guo,&K. Lu.(2006).Microstructure evolution and tensile properties of pure Ti subjected to rapidly heating and quenching.Journal of Materials Science & Technology,22(2),190-194.
MLA	W. S. Zhao,et al."Microstructure evolution and tensile properties of pure Ti subjected to rapidly heating and quenching".Journal of Materials Science & Technology 22.2(2006):190-194.