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Insights into High-Temperature Uniaxial Compression Deformation Behavior of Ti3AlC2
Zhang, Hui; Wang, Xiaohui; Wan, Peng; Zhan, Xun; Zhou, Yanchun; wang@imr.ac.cn
2015
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Volume98Issue:10Pages:3332-3337
AbstractWe report on strain-rate-dependent compression deformation behavior of Ti3AlC2 at 1000 degrees C-1200 degrees C. At 1000 degrees C and high strain rate (10(-2) or 10(-3)s(-1)), Ti3AlC2 deforms in a nonplastic manner. Upon increasing temperature and reducing strain rate, Ti3AlC2 exhibits a limited plasticity. For instance, the true plastic strain at 1200 degrees C and 10(-4)s(-1) is only 3%, beyond which strain softening following a short hardening regime occurs. The softening results from the formation of localized microvoids and microcracks. Decreasing the strain rate further to 10(-5)s(-1) at 1200 degrees C, strain hardening instead of softening is identified. Under such conditions, the plastic strain remarkably increases, reaching a value as high as 27%. Postdeformation microstructural analyses of the dislocation configurations explicitly evidence the dislocation reactions, formation of hexagonal dislocation networks and dislocation entanglements. These account for the strain hardening. The extraordinary plasticity at 1200 degrees C and 10(-5)s(-1) benefits from the initiation of nonbasal slip systems. Finally, a complete high-temperature deformation scenario for nanolaminated Ti3AlC2 is elaborated.
description.department[zhang, hui ; wang, xiaohui ; wan, peng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [zhang, hui ; wan, peng] univ chinese acad sci, beijing 100049, peoples r china ; [zhan, xun] case western reserve univ, dept mat sci & engn, cleveland, oh 44106 usa ; [zhou, yanchun] aerosp res inst mat & proc technol, sci & technol adv funct composite lab, beijing 100076, peoples r china ; [zhou, yanchun] amer ceram soc, westerville, oh usa
Funding OrganizationChinese Academy of Sciences; Natural Science Foundation of China [U1435206]
Indexed Bysci
Language英语
WOS IDWOS:000362599000050
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74924
Collection中国科学院金属研究所
Corresponding Authorwang@imr.ac.cn
Recommended Citation
GB/T 7714
Zhang, Hui,Wang, Xiaohui,Wan, Peng,et al. Insights into High-Temperature Uniaxial Compression Deformation Behavior of Ti3AlC2[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2015,98(10):3332-3337.
APA Zhang, Hui,Wang, Xiaohui,Wan, Peng,Zhan, Xun,Zhou, Yanchun,&wang@imr.ac.cn.(2015).Insights into High-Temperature Uniaxial Compression Deformation Behavior of Ti3AlC2.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,98(10),3332-3337.
MLA Zhang, Hui,et al."Insights into High-Temperature Uniaxial Compression Deformation Behavior of Ti3AlC2".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 98.10(2015):3332-3337.
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