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{10 1 over line 2} twinning induced by the interaction between {11 2 over line 1} twin and beta phase in alpha plus beta Ti alloys

文献类型：期刊论文

作者Zheng, Xiaodong5,6; Liu, Guisen3; Zheng, Shijian5,6; Ma, Yingjie4; Yang, Rui4; Wang, Jian2; Ma, Xiuliang1,5
刊名ACTA MATERIALIA
出版日期2022-06-01
卷号231页码:13
ISSN号1359-6454
关键词Ti alloys {10 1 over bar 2} twin {11 2 over bar 1} twin Interface Transmission electron microscopy
DOI10.1016/j.actamat.2022.117900
通讯作者Zheng, Shijian() ; Ma, Yingjie(yjma@imr.ac.cn)
英文摘要Severe plastic deformation induces numerous deformation twins in fully lamellar alpha+ beta Ti alloys. Interaction between deformation twins and beta phase brings a strong strengthening effect, however, the twinning transfer mechanism across alpha/ beta interface is still unclear. In this work, we report the interaction behavior and transfer mechanism of {11 2 over line 1} twin across alpha/ beta interface. Different from the common case that twinning strain transferred by plastic deformation of beta phase, the interaction between {11 2 over line 1} twin and beta phase induces {10 1 over line 2} twinning around the interaction area and the beta phase is free of plastic deformation. Experiments show that {10 1 over line 2} twins will nucleate in four quadrants of the intersection between {11 2 over line 1} twin and beta phase when the beta phase is thicker, whereas {10 1 over line 2} twins will only nucleate in one pair of diagonal quadrants of the intersection when the beta phase is thinner. The reason is that the strain field around the intersection between {11 2 over line 1} twin and beta phase is correlated with the thickness of beta phase, which ultimately determines where {10 1 over line 2} twins nucleate. Moreover, transmission electron microscopy (TEM) investigations reveal that the beta phase will block the motivation of {11 2 over line 1} twinning dislocation b { 11 2 over line 1 } t . In this situation, the twinning transfer of {11 2 over line 1} twin through the beta phase is accomplished with the help of elastic deformation of beta phase and nucleation of sequential {10 1 over line 2} twins. The {10 1 over line 2} twinning is facilitated by the dissociation of b { 11 2 over line 1 } t dislocations at the alpha/ beta interface promoted by the {11 2 over line 1} twinning shear stress field at the interaction area. (c) 2022 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
资助项目National Natural Science Foundation of China[51771201] ; National Natural Science Foundation of China[52071124] ; Natural Science Foundation of Hebei[E2021202135] ; key project of Natural Science Foundation of Tianjin[20JCZDJC00440] ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University[2020RALKFKT002]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000793420000004
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Hebei ; key project of Natural Science Foundation of Tianjin ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University
源URL[http://ir.imr.ac.cn/handle/321006/174047]  
专题金属研究所_中国科学院金属研究所
通讯作者Zheng, Shijian; Ma, Yingjie
作者单位1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
2.Univ Nebraska, Mech & Mat Engn, Lincoln, NE 68588 USA
3.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
6.Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin Key Lab Mat Laminating Fabricat & Interfa, Tianjin 300130, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Xiaodong,Liu, Guisen,Zheng, Shijian,et al. {10 1 over line 2} twinning induced by the interaction between {11 2 over line 1} twin and beta phase in alpha plus beta Ti alloys[J]. ACTA MATERIALIA,2022,231:13.
APA Zheng, Xiaodong.,Liu, Guisen.,Zheng, Shijian.,Ma, Yingjie.,Yang, Rui.,...&Ma, Xiuliang.(2022).{10 1 over line 2} twinning induced by the interaction between {11 2 over line 1} twin and beta phase in alpha plus beta Ti alloys.ACTA MATERIALIA,231,13.
MLA Zheng, Xiaodong,et al."{10 1 over line 2} twinning induced by the interaction between {11 2 over line 1} twin and beta phase in alpha plus beta Ti alloys".ACTA MATERIALIA 231(2022):13.

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来源：金属研究所

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