The Nucleation and the Intrinsic Microstructure Evolution of Martensite from {332}< 113 >(beta) Twin Boundary in beta Titanium: First-Principles Calculations

doi:10.3390/met9111202

IMR OpenIR

	The Nucleation and the Intrinsic Microstructure Evolution of Martensite from {332}< 113 >(beta) Twin Boundary in beta Titanium: First-Principles Calculations
	Chen, Qiu-Jie 1,2; Ma, Shang-Yi 1; Wang, Shao-Qing 1
通讯作者	Ma, Shang-Yi(shyma@imr.ac.cn)
	2019-11-01
发表期刊	METALS
卷号	9 期号:11 页码:12
摘要	A clear understanding on the inter-evolution behaviors between {332}< 113 >(beta) twinning and stress-induced martensite (SIM) alpha '' in beta-Ti alloys is vital for improving its strength and ductility concurrently. As the preliminary step to better understand these complex behaviors, the nucleation and the intrinsic microstructure evolution of martensite alpha '' from {332}< 113 >(beta) twin boundary (TB) were investigated in pure beta-Ti at atomic scale using first-principles calculations in this work. We found the alpha '' precipitation prefers to nucleate and grow at {332}< 113 >(beta) TB, with the transformation of {332}< 113 >(beta) TB ->{130}<(3) over bar 10 >(alpha '') TB. During this process, alpha '' precipitation firstly nucleates at{332}< 113 >(beta) TB -> and, subsequently, it grows inwards toward the grain interiors. This easy transition may stem from the strong crystallographic correspondence between {332}< 113 >(beta) and {130}<(3) over bar 10 >(alpha '') TBs, and the region close to the f332 gh113 i fi TB presents the characteristics of intermediate structure between beta and alpha '' phases. Kinetics calculations indicate the alpha '' phase barrierlessly nucleates at{332}< 113 >(beta) TB rather than in grain interior, where there is higher critical driving energy. Our calculations provide a unique perspective on the "intrinsic" microstructure evolution of martensite alpha '' from {332}< 113 >(beta) TB, which may deepen our understanding on the precipitation of martensite alpha '' and the inter-evolution behaviors between {332}< 113 >(beta) twinning and martensite alpha '' in beta-Ti alloys at atomic scale.
关键词	martensite phase transformation phase transformation kinetics titanium first-principle calculation twin boundary
资助者	National Key R&D Program of China ; CAS Frontier Science Research Project
DOI	10.3390/met9111202
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2016YFB0701302] ; CAS Frontier Science Research Project[QYZDJ-SSW-JSC015] ; CAS Frontier Science Research Project[QYZDY-SSW-JSC027]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000504411600070
出版者	MDPI
引用统计	被引频次：2[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/321006/136499
专题	中国科学院金属研究所
通讯作者	Ma, Shang-Yi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Chen, Qiu-Jie,Ma, Shang-Yi,Wang, Shao-Qing. The Nucleation and the Intrinsic Microstructure Evolution of Martensite from {332}< 113 >(beta) Twin Boundary in beta Titanium: First-Principles Calculations[J]. METALS,2019,9(11):12.
APA	Chen, Qiu-Jie,Ma, Shang-Yi,&Wang, Shao-Qing.(2019).The Nucleation and the Intrinsic Microstructure Evolution of Martensite from {332}< 113 >(beta) Twin Boundary in beta Titanium: First-Principles Calculations.METALS,9(11),12.
MLA	Chen, Qiu-Jie,et al."The Nucleation and the Intrinsic Microstructure Evolution of Martensite from {332}< 113 >(beta) Twin Boundary in beta Titanium: First-Principles Calculations".METALS 9.11(2019):12.