An effective method to calculate the composition-dependent interdiffusivity with one diffusion couple
文献类型：期刊论文
| 作者 | Cheng, KM; Zhou, JX; Xu, HX; Tang, SQ; Yang, YS; Cheng, KM (reprint author), Shandong Acad Sci, Adv Mat Inst, Shandong Key Lab High Strength Lightweight Metall, Jinan 250014, Shandong, Peoples R China. |
| 刊名 | COMPUTATIONAL MATERIALS SCIENCE
 |
| 出版日期 | 2018-02-15 |
| 卷号 | 143页码:182-188 |
| 关键词 | Numerical Inverse Method Multicomponent Diffusion High-pressure Coefficients Systems Alloys |
| ISSN号 | 0927-0256 |
| 英文摘要 | Previous numerical inverse method to calculate composition-dependent interdiffusivity with one diffusion couple can encounter with low calculation efficiency due to the unavoidable diffusion simulation procedure. The present work applies the numerical inverse method to the integrated form of diffusion equation, degenerating the original inverse problem into a linear multi-objective optimization problem, which can be solved with dramatically increased calculation efficiency while maintaining the overall accuracy. The current method is verified in the fcc phase of the Al-Mg, Al-Mg-Zn, Al-Mg-Zn-Cu system as well as the intermetallic compounds of the Al-Mg system. The increment in computation efficiency is discussed. (C) 2017 Elsevier B.V. All rights reserved.; Previous numerical inverse method to calculate composition-dependent interdiffusivity with one diffusion couple can encounter with low calculation efficiency due to the unavoidable diffusion simulation procedure. The present work applies the numerical inverse method to the integrated form of diffusion equation, degenerating the original inverse problem into a linear multi-objective optimization problem, which can be solved with dramatically increased calculation efficiency while maintaining the overall accuracy. The current method is verified in the fcc phase of the Al-Mg, Al-Mg-Zn, Al-Mg-Zn-Cu system as well as the intermetallic compounds of the Al-Mg system. The increment in computation efficiency is discussed. (C) 2017 Elsevier B.V. All rights reserved. |
| 学科主题 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | National Key Research and Development Program of China [2016YFB0701202, 2016YFB0301105]; Natural Science Foundation of Shandong Province [ZR2017BEM022] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79494]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cheng, KM (reprint author), Shandong Acad Sci, Adv Mat Inst, Shandong Key Lab High Strength Lightweight Metall, Jinan 250014, Shandong, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cheng, KM,Zhou, JX,Xu, HX,et al. An effective method to calculate the composition-dependent interdiffusivity with one diffusion couple[J]. COMPUTATIONAL MATERIALS SCIENCE,2018,143:182-188. |
| APA | Cheng, KM,Zhou, JX,Xu, HX,Tang, SQ,Yang, YS,&Cheng, KM .(2018).An effective method to calculate the composition-dependent interdiffusivity with one diffusion couple.COMPUTATIONAL MATERIALS SCIENCE,143,182-188. |
| MLA | Cheng, KM,et al."An effective method to calculate the composition-dependent interdiffusivity with one diffusion couple".COMPUTATIONAL MATERIALS SCIENCE 143(2018):182-188. |
入库方式： OAI收割
来源：金属研究所
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