IMR OpenIR
New insights into formation mechanism of interfacial twin boundary omega-phase in metastable beta-Ti alloys
Chen, Wei1; Cao, Shuo2,3; Zhang, Jinyu1; Zha, You1; Hu, Qingmiao2,3; Sun, Jun1
Corresponding AuthorZhang, Jinyu(jinyuzhang1002@mail.xjtu.edu.cn) ; Hu, Qingmiao(qmhu@imr.ac.cn)
2020-06-01
Source PublicationMATERIALS CHARACTERIZATION
ISSN1044-5803
Volume164Pages:7
AbstractThe omega-phase transformation in metastable beta-titanium (Ti) alloys has attracted great attention in the past decade due to its intrinsic complexity and modifying mechanical properties. Interfacial twin boundary (ITB) omega-phase was reported to appear along {332}(beta) or {112}(beta) twin boundaries in metastable beta-Ti alloys. The formation of such ITB omega-phase was proposed to arise from the reverse alpha '' to beta martensitic transformation and subsequent stress relaxation along the twin boundaries. In this study, a new formation mechanism is revealed in Ti-10wt.%Cr alloy containing co-precipitates in the initial microstructure. It is experimentally found that the formation of ITB cophase is closely correlated with the favored pre-existing one co-variant at the expense of the other three-siblings, i.e., reorientation of omega-variants. The co-reorientation mechanism is further rationalized by first-principles calculation in terms of the energy barrier of transformation pathway between omega-variants. These findings advance our fundamental understanding to the omega-phase transformation and further plastic deformation behavior of Ti alloys.
Keywordbeta-Titanium alloys omega-Precipitates Phase transformation Reorientation TEM characterization First-principles calculation
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China ; 111 Project 2.0 of China ; Natural Science Basic Research Plan in Shaanxi Province of China ; International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies ; Fok Ying Tong Education Foundation ; Shaanxi Province Innovative Talents Promotion Projects
DOI10.1016/j.matchar.2020.110363
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51871176] ; National Natural Science Foundation of China[51722104] ; National Natural Science Foundation of China[51621063] ; National Natural Science Foundation of China[91860107] ; National Key Research and Development Program of China[2017YFA0700701] ; National Key Research and Development Program of China[2017YFB0702301] ; National Key Research and Development Program of China[2016YFB0701301] ; 111 Project 2.0 of China[PB2018008] ; Natural Science Basic Research Plan in Shaanxi Province of China[2018JM5098] ; International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies ; Fok Ying Tong Education Foundation[161096] ; Shaanxi Province Innovative Talents Promotion Projects[2018KJXX-004]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS IDWOS:000539355400035
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139221
Collection中国科学院金属研究所
Corresponding AuthorZhang, Jinyu; Hu, Qingmiao
Affiliation1.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
2.Chinese Acad Sci, Shengyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Wei,Cao, Shuo,Zhang, Jinyu,et al. New insights into formation mechanism of interfacial twin boundary omega-phase in metastable beta-Ti alloys[J]. MATERIALS CHARACTERIZATION,2020,164:7.
APA Chen, Wei,Cao, Shuo,Zhang, Jinyu,Zha, You,Hu, Qingmiao,&Sun, Jun.(2020).New insights into formation mechanism of interfacial twin boundary omega-phase in metastable beta-Ti alloys.MATERIALS CHARACTERIZATION,164,7.
MLA Chen, Wei,et al."New insights into formation mechanism of interfacial twin boundary omega-phase in metastable beta-Ti alloys".MATERIALS CHARACTERIZATION 164(2020):7.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Wei]'s Articles
[Cao, Shuo]'s Articles
[Zhang, Jinyu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Wei]'s Articles
[Cao, Shuo]'s Articles
[Zhang, Jinyu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Wei]'s Articles
[Cao, Shuo]'s Articles
[Zhang, Jinyu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.