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The Nucleation and the Intrinsic Microstructure Evolution of Martensite from {332}< 113 >(beta) Twin Boundary in beta Titanium: First-Principles Calculations
Chen, Qiu-Jie1,2; Ma, Shang-Yi1; Wang, Shao-Qing1
Corresponding AuthorMa, Shang-Yi(shyma@imr.ac.cn)
2019-11-01
Source PublicationMETALS
Volume9Issue:11Pages:12
AbstractA 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.
Keywordmartensite phase transformation phase transformation kinetics titanium first-principle calculation twin boundary
Funding OrganizationNational Key R&D Program of China ; CAS Frontier Science Research Project
DOI10.3390/met9111202
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2016YFB0701302] ; CAS Frontier Science Research Project[QYZDJ-SSW-JSC015] ; CAS Frontier Science Research Project[QYZDY-SSW-JSC027]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000504411600070
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136499
Collection中国科学院金属研究所
Corresponding AuthorMa, Shang-Yi
Affiliation1.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
Recommended Citation
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.
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