IMR OpenIR
Dislocation dipole-induced strengthening in intermetallic TiAl
He, Y; Liu, Z; Zhou, G; Wang, H; Bai, CG; Rodney, D; Appel, F; Xu, DS; Yang, R; Wang, H (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China.
2018-01-15
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume143Pages:98-102
AbstractNarrow dislocation dipoles in intermetallic TiAl are systematically investigated by atomic-scale simulations and electron microscopy. The formation energy of narrow dipolar configurations and the activation energy during their evolution are unraveled. We show that faulted dipoles can be stable over experimental timescales, in full agreement with high-resolution observations. Such stable atomic-scale structures provide a strengthening effect significantly larger than the elastic prediction, which deeply influences plasticity in TiAl. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.; Narrow dislocation dipoles in intermetallic TiAl are systematically investigated by atomic-scale simulations and electron microscopy. The formation energy of narrow dipolar configurations and the activation energy during their evolution are unraveled. We show that faulted dipoles can be stable over experimental timescales, in full agreement with high-resolution observations. Such stable atomic-scale structures provide a strengthening effect significantly larger than the elastic prediction, which deeply influences plasticity in TiAl. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
description.department[he, yan ; liu, zhao ; zhou, gang ; wang, hao ; bai, chunguang ; xu, dongsheng ; yang, rui] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [he, yan] shenyang normal univ, coll phys & technol, shenyang 110034, liaoning, peoples r china ; [zhou, gang] dalian univ technol, sch mat sci & engn, dalian 116024, peoples r china ; [rodney, david] univ lyon 1, inst lumiere matiere, cnrs, umr 5306, f-69622 villeurbanne, france ; [appel, fritz] helmholtz zentrum geesthacht, inst mat res, d-21502 geesthacht, germany
KeywordActivation-relaxation Technique Characterizing Faulted Dipoles Atomistic Simulations Titanium Aluminides Deformation Transformation Dynamics Tensile Alloys
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
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/321006/79582
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
He, Y,Liu, Z,Zhou, G,et al. Dislocation dipole-induced strengthening in intermetallic TiAl[J]. SCRIPTA MATERIALIA,2018,143:98-102.
APA He, Y.,Liu, Z.,Zhou, G.,Wang, H.,Bai, CG.,...&Wang, H .(2018).Dislocation dipole-induced strengthening in intermetallic TiAl.SCRIPTA MATERIALIA,143,98-102.
MLA He, Y,et al."Dislocation dipole-induced strengthening in intermetallic TiAl".SCRIPTA MATERIALIA 143(2018):98-102.
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
[He, Y]'s Articles
[Liu, Z]'s Articles
[Zhou, G]'s Articles
Baidu academic
Similar articles in Baidu academic
[He, Y]'s Articles
[Liu, Z]'s Articles
[Zhou, G]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[He, Y]'s Articles
[Liu, Z]'s Articles
[Zhou, G]'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.