Crystal Plasticity Finite Element Method Investigation of the High Temperature Deformation Consistency in Dual-Phase Titanium Alloy
文献类型：期刊论文
| 作者 | Li Xuexiong1,2; Xu Dongsheng2; Yang Rui2 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2019-07-11 |
| 卷号 | 55期号:7页码:928-938 |
| 关键词 | dual-phase titanium alloy Voronoi crystal plasticity finite element method (CPFEM) distribution of micro stress and strain deformation compatibility |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2018.00380 |
| 通讯作者 | Xu Dongsheng(dsxu@imr.ac.cn) |
| 英文摘要 | Based on the rate-dependent crystal plasticity constitutive model considering all slip systems, a series of dual-phase polycrystalline models were established using 3D Voronoi tessellation to investigate the high temperature plastic deformation of Ti-6Al-4V alloy with different microstructure features. The spatial distributions and evolution of stress and strain in various grains and phases were calculated in detail, and a new method was proposed to evaluate quantitatively the deformation consistency in the alloy with two phases. Simulations show that grain boundary region responds preferentially in the early stage of deformation. The encircling structure formed between beta and alpha grains can enhance the differences in the local strain distribution. Increasing the aspect ratio of grains and the fractions of heterogeneous phase interface can reduce the local compatibility of deformation. The stress frequency statistics of both alpha and beta phases show a double peak form, with alpha phase higher in average strain, and beta phase higher in stress distribution. Increasing of the volume fractions of a phase may reduce the tensile yield strength, and cause the stress consistency coefficient to decrease, while the strain consistency coefficient decreases first and then increases. As initial alpha-basal texture intensity increases, both tensile yield strength and stress consistency coefficient increase, while the strain consistency coefficient decreases first and then increases. |
| 资助项目 | National Key Research and Development Program of China[2016YFB0701304] ; Informatization Program of the Chinese Academy of Sciences[XXH13506-304] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC01040100] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000471268000013 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Key Research and Development Program of China ; Informatization Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.imr.ac.cn/handle/321006/133893]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xu Dongsheng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Xuexiong,Xu Dongsheng,Yang Rui. Crystal Plasticity Finite Element Method Investigation of the High Temperature Deformation Consistency in Dual-Phase Titanium Alloy[J]. ACTA METALLURGICA SINICA,2019,55(7):928-938. |
| APA | Li Xuexiong,Xu Dongsheng,&Yang Rui.(2019).Crystal Plasticity Finite Element Method Investigation of the High Temperature Deformation Consistency in Dual-Phase Titanium Alloy.ACTA METALLURGICA SINICA,55(7),928-938. |
| MLA | Li Xuexiong,et al."Crystal Plasticity Finite Element Method Investigation of the High Temperature Deformation Consistency in Dual-Phase Titanium Alloy".ACTA METALLURGICA SINICA 55.7(2019):928-938. |
入库方式： OAI收割
来源：金属研究所
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