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Three-dimensional elastoplastic phase-field simulation of gamma ' rafting and creep deformation
Yang, Min; Zhang, Jun; Wei, Hua; Gui, Weimin; Jin, Tao; Liu, Lin; Zhang, J (reprint author), Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China.; Jin, T (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China.
2017-12-01
Source PublicationSPRINGER
ISSN0022-2461
Volume52Issue:24Pages:13940-13947
AbstractA modified phase-field model coupling viscoplastic constitutive equations has been built up to simulate the creep process of nickel-base single-crystal superalloys at 1223 K/300 MPa. The kinematic and isotropic hardening effects as well as interactions of slip systems are included in the present model. Under the external tension along [001] direction, the plastic strain prefers to concentrate in the channel vertical to [001] direction, promoting gamma' precipitate to raft along the direction vertical to [001] direction. The interactions between slip systems alter the value of plastic strain and thus the stress field in inner gamma channel. In turn, the stress field readjusts the plastic deformation. The simulative results and experimental data are in good agreement in the initial creep stage. In addition, this modified model gives a possibility to simulate the microstructure evolution during cycle fatigue.; A modified phase-field model coupling viscoplastic constitutive equations has been built up to simulate the creep process of nickel-base single-crystal superalloys at 1223 K/300 MPa. The kinematic and isotropic hardening effects as well as interactions of slip systems are included in the present model. Under the external tension along [001] direction, the plastic strain prefers to concentrate in the channel vertical to [001] direction, promoting gamma' precipitate to raft along the direction vertical to [001] direction. The interactions between slip systems alter the value of plastic strain and thus the stress field in inner gamma channel. In turn, the stress field readjusts the plastic deformation. The simulative results and experimental data are in good agreement in the initial creep stage. In addition, this modified model gives a possibility to simulate the microstructure evolution during cycle fatigue.
description.department[yang, min ; zhang, jun ; liu, lin] northwestern polytech univ, state key lab solidificat proc, xian 710072, peoples r china ; [wei, hua] zhejiang univ, ctr centrifugal hypergrav res, hangzhou 310058, zhejiang, peoples r china ; [gui, weimin ; jin, tao] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china
Subject AreaMaterials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [51331005, 51071164, 51371173]; National Key Research and Development Program [2016YFB0701405]; State Key Laboratory of Solidification Processing in NWPU [SKLSP201318]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78967
Collection中国科学院金属研究所
Corresponding AuthorZhang, J (reprint author), Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Peoples R China.; Jin, T (reprint author), Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Yang, Min,Zhang, Jun,Wei, Hua,et al. Three-dimensional elastoplastic phase-field simulation of gamma ' rafting and creep deformation[J]. SPRINGER,2017,52(24):13940-13947.
APA Yang, Min.,Zhang, Jun.,Wei, Hua.,Gui, Weimin.,Jin, Tao.,...&Jin, T .(2017).Three-dimensional elastoplastic phase-field simulation of gamma ' rafting and creep deformation.SPRINGER,52(24),13940-13947.
MLA Yang, Min,et al."Three-dimensional elastoplastic phase-field simulation of gamma ' rafting and creep deformation".SPRINGER 52.24(2017):13940-13947.
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