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A study of stress-induced phase transformation and micromechanical behavior of CuZr-based alloy by in-situ neutron diffraction
Wang, Dongmei; Mu, Juan; Chen, Yan; Qi, Yuming; Wu, Wei; Wang, Yandong; Xu, Haijian; Zhang, Haifeng; An, Ke; An, K (reprint author), Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
2017-03-05
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume696Pages:1096-1104
AbstractThe stress-induced phase transformation and micromechanical behavior of CuZr-based alloy were investigated by in-situ neutron diffraction. The pseudoelastic behavior with a pronounced strainhardening effect is observed. The retained martensite nuclei and the residual stress obtained from the 1st cycle reduce the stress threshold for the martensitic transformation. A critical stress level is required for the reverse martensitic transformation from martensite to B2 phase. An increase of intensity for the B2 (110) plane in the 1st cycle is caused by the twinning along the {112}< 111> twinning system. The convoluted stress partitioning influenced by the elastic and transformation anisotropy along with the newly formed martensite determines the microstress partitioning of the studied CuZr-based alloy. The reversible martensitic transformation is responsible for the pseudoelasticity. The macro mechanical behavior of the pure B2 phase can be divided into 3 stages, which are mediated by the evolvement of the martensitic transformation. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U. S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy. gov/downloads/doe-public-access-plan). (C) 2016 Elsevier B. V. All rights reserved.; The stress-induced phase transformation and micromechanical behavior of CuZr-based alloy were investigated by in-situ neutron diffraction. The pseudoelastic behavior with a pronounced strainhardening effect is observed. The retained martensite nuclei and the residual stress obtained from the 1st cycle reduce the stress threshold for the martensitic transformation. A critical stress level is required for the reverse martensitic transformation from martensite to B2 phase. An increase of intensity for the B2 (110) plane in the 1st cycle is caused by the twinning along the {112}< 111> twinning system. The convoluted stress partitioning influenced by the elastic and transformation anisotropy along with the newly formed martensite determines the microstress partitioning of the studied CuZr-based alloy. The reversible martensitic transformation is responsible for the pseudoelasticity. The macro mechanical behavior of the pure B2 phase can be divided into 3 stages, which are mediated by the evolvement of the martensitic transformation. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U. S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy. gov/downloads/doe-public-access-plan). (C) 2016 Elsevier B. V. All rights reserved.
description.department[wang, dongmei ; mu, juan ; wang, yandong ; xu, haijian] northeastern univ, sch mat sci & engn, key lab anisotropy & texture mat, minist educ, shenyang 110819, peoples r china ; [wang, dongmei ; chen, yan ; qi, yuming ; wu, wei ; an, ke] oak ridge natl lab, chem & engn mat div, oak ridge, tn 37831 usa ; [wang, dongmei] univ tennessee, shull wollan ctr, knoxville, tn 37831 usa ; [zhang, haifeng] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china
KeywordIn-situ Neutron Diffraction Technique Macro Mechanical Behavior Stress-induced Martensitic Transformation Micromechanical Behavior Stress Partitioning
Subject AreaChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationU.S. Department of Energy, Basic Energy Sciences, Scientific User Facilities Division; China Scholarship Council (CSC); National Natural Science Foundation of China (NSFC) [51231002, 51471032, 51527801, 51301034]; University of Tennessee
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78241
Collection中国科学院金属研究所
Corresponding AuthorAn, K (reprint author), Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA.
Recommended Citation
GB/T 7714
Wang, Dongmei,Mu, Juan,Chen, Yan,et al. A study of stress-induced phase transformation and micromechanical behavior of CuZr-based alloy by in-situ neutron diffraction[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,696:1096-1104.
APA Wang, Dongmei.,Mu, Juan.,Chen, Yan.,Qi, Yuming.,Wu, Wei.,...&An, K .(2017).A study of stress-induced phase transformation and micromechanical behavior of CuZr-based alloy by in-situ neutron diffraction.JOURNAL OF ALLOYS AND COMPOUNDS,696,1096-1104.
MLA Wang, Dongmei,et al."A study of stress-induced phase transformation and micromechanical behavior of CuZr-based alloy by in-situ neutron diffraction".JOURNAL OF ALLOYS AND COMPOUNDS 696(2017):1096-1104.
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