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An effective method to calculate the composition-dependent interdiffusivity with one diffusion couple
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.
2018-02-15
发表期刊COMPUTATIONAL MATERIALS SCIENCE
ISSN0927-0256
卷号143页码:182-188
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.
部门归属[cheng, kaiming ; zhou, jixue ; tang, shouqiu] shandong acad sci, adv mat inst, shandong key lab high strength lightweight metall, jinan 250014, shandong, peoples r china ; [xu, huixia] cent s univ, state key lab powder met, changsha 410083, hunan, peoples r china ; [yang, yuansheng] chinese acad sci, inst met res, shenyang 110016, liaoning, peoples r china
关键词Numerical Inverse Method Multicomponent Diffusion High-pressure Coefficients Systems Alloys
学科领域Materials Science, Multidisciplinary
资助者National Key Research and Development Program of China [2016YFB0701202, 2016YFB0301105]; Natural Science Foundation of Shandong Province [ZR2017BEM022]
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/321006/79494
专题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.
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