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Simulations of deformation and damage processes of SiCp/Al composites during tension
Zhang, JF; Zhang, XX; Wang, QZ; Xiao, BL; Ma, ZY; Xiao, BL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
2018-04-01
发表期刊JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
卷号34期号:4页码:627-634
摘要The deformation, damage and failure behaviors of 17 vol.% SiCp/2009Al composite were studied by microscopic finite element (FE) models based on a representative volume element (RVE) and a unit cell. The RVE having a 3D realistic microstructure was constructed via computational modeling technique, in which an interface phase with an average thickness of 50 nm was generated for assessing the effects of interfacial properties. Modeling results showed that the RVE based FE model was more accurate than the unit cell based one. Based on the RVE, the predicted stress-strain curve and the fracture morphology agreed well with the experimental results. Furthermore, lower interface strength resulted in lower flow stress and ductile damage of interface phase, thereby leading to decreased elongation. It was revealed that the stress concentration factor of SiC was similar to 2.0: the average stress in SiC particles reached similar to 1200 MPa, while that of the composite reached similar to 600 MPa. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; The deformation, damage and failure behaviors of 17 vol.% SiCp/2009Al composite were studied by microscopic finite element (FE) models based on a representative volume element (RVE) and a unit cell. The RVE having a 3D realistic microstructure was constructed via computational modeling technique, in which an interface phase with an average thickness of 50 nm was generated for assessing the effects of interfacial properties. Modeling results showed that the RVE based FE model was more accurate than the unit cell based one. Based on the RVE, the predicted stress-strain curve and the fracture morphology agreed well with the experimental results. Furthermore, lower interface strength resulted in lower flow stress and ductile damage of interface phase, thereby leading to decreased elongation. It was revealed that the stress concentration factor of SiC was similar to 2.0: the average stress in SiC particles reached similar to 1200 MPa, while that of the composite reached similar to 600 MPa. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
部门归属[zhang, j. f. ; zhang, x. x. ; wang, q. z. ; xiao, b. l. ; ma, z. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [zhang, j. f.] univ chinese acad sci, beijing 100049, peoples r china
关键词Metal-matrix Composites Strain-gradient-plasticity Particle-size Mechanical-properties Silicon-carbide Representative Volume Interfacial Strength Conventional Theory Hybrid Composites Fracture
学科领域Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者National Key R&D Program of China [2017YFB0703104]; National Natural Science Foundation of China [51671191, 51401219]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79397
专题中国科学院金属研究所
通讯作者Zhang, XX; Xiao, BL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Zhang, JF,Zhang, XX,Wang, QZ,et al. Simulations of deformation and damage processes of SiCp/Al composites during tension[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(4):627-634.
APA Zhang, JF,Zhang, XX,Wang, QZ,Xiao, BL,Ma, ZY,&Xiao, BL .(2018).Simulations of deformation and damage processes of SiCp/Al composites during tension.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(4),627-634.
MLA Zhang, JF,et al."Simulations of deformation and damage processes of SiCp/Al composites during tension".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.4(2018):627-634.
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