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
刊名	Journal of Materials Science & Technology
	2006
卷号	22 期号:2 页码:190-194
关键词	pure Ti microstructure properties rapidly heating substructure zirconium titanium alloys
ISSN号	1005-0302
中文摘要	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.
原文出处	://WOS:000236590000010
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34744]
专题	金属研究所_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.