IMR OpenIR
Ab initio investigation on the slip preference of < a >-dislocations in hexagonal metals and alloys
Zhou, G.; Li, Y. J.; Wang, H.; Ye, L. H.; Xu, D. S.; Meng, C. G.; Yang, R.; Wang, H (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2017-11-01
Source PublicationELSEVIER SCIENCE BV
ISSN0927-0256
Volume139Pages:209-215
AbstractSlip preference is investigated via ab initio calculations in hexagonal metals, Be, Mg, Ti, Zn and Zr, as well as alloyed Mg and Ti. In general, the unstable stacking fault energy, gamma(us), which is relevant with the Peierls barrier, plays the key role in determining slip preference. In the materials studied, slip is preferred on the plane that possesses a lower gamma(us). Detailed studies indicate that gamma(us), determined by the directionality of electron bonding, is primarily relevant to the c/a ratio. In alloyed Mg and Ti, alloying varies the c/a ratio, but due to different dependences of gamma(us) on c/a, certain alloying elements significantly affect < a >-slip preference in Mg, while alloying exhibits negligible influence on < a >-slip preference in hexagonal Ti. (C) 2017 Elsevier B.V. All rights reserved.; Slip preference is investigated via ab initio calculations in hexagonal metals, Be, Mg, Ti, Zn and Zr, as well as alloyed Mg and Ti. In general, the unstable stacking fault energy, gamma(us), which is relevant with the Peierls barrier, plays the key role in determining slip preference. In the materials studied, slip is preferred on the plane that possesses a lower gamma(us). Detailed studies indicate that gamma(us), determined by the directionality of electron bonding, is primarily relevant to the c/a ratio. In alloyed Mg and Ti, alloying varies the c/a ratio, but due to different dependences of gamma(us) on c/a, certain alloying elements significantly affect < a >-slip preference in Mg, while alloying exhibits negligible influence on < a >-slip preference in hexagonal Ti. (C) 2017 Elsevier B.V. All rights reserved.
description.department[zhou, g. ; meng, c. g.] dalian univ technol, dalian 116024, peoples r china ; [zhou, g. ; wang, h. ; ye, l. h. ; xu, d. s. ; yang, r.] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [li, y. j.] shenyang pharmaceut univ, shenyang 110016, peoples r china
KeywordPlasticity Metal Dislocation Hexagonal Ab Initio
Subject AreaMaterials Science, Multidisciplinary
Funding OrganizationNational Key Research and Development Program of China [2016YFB0701304]; Natural Science Foundation of China [51671195]; Youth Innovation Promotion Association of Chinese Academy of Sciences [2015151]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79020
Collection中国科学院金属研究所
Corresponding AuthorWang, H (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Zhou, G.,Li, Y. J.,Wang, H.,et al. Ab initio investigation on the slip preference of < a >-dislocations in hexagonal metals and alloys[J]. ELSEVIER SCIENCE BV,2017,139:209-215.
APA Zhou, G..,Li, Y. J..,Wang, H..,Ye, L. H..,Xu, D. S..,...&Wang, H .(2017).Ab initio investigation on the slip preference of < a >-dislocations in hexagonal metals and alloys.ELSEVIER SCIENCE BV,139,209-215.
MLA Zhou, G.,et al."Ab initio investigation on the slip preference of < a >-dislocations in hexagonal metals and alloys".ELSEVIER SCIENCE BV 139(2017):209-215.
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
[Zhou, G.]'s Articles
[Li, Y. J.]'s Articles
[Wang, H.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, G.]'s Articles
[Li, Y. J.]'s Articles
[Wang, H.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, G.]'s Articles
[Li, Y. J.]'s Articles
[Wang, H.]'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.