Monte Carlo simulation of effect of Mg and Cu on precipitation of Al-Zn-Mg alloys during initial ageing stage - 文章详情页

作者：

Lin, Liu-Qiu (Lin, Liu-Qiu.) | Rong, Li (Rong, Li.) | Wang, Wei (Wang, Wei.) (学者：王伟) | Nie, Zuo-Ren (Nie, Zuo-Ren.) (学者：聂祚仁)

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摘要：

The　Monte　Carlo　method　was　applied　to　simulate　the　microstructural　evolution　of　Al-6Zn-(2Mg)　and　Al-10Zn-1.9Mg-(1.7Cu)　alloys　during　the　initial　ageing　stage,　and　the　effect　of　Mg　and　Cu　was　analyzed.　The　simulation　results　show　that　there　are　Zn　clusters　in　Al-6Zn　alloy　during　the　initial　ageing　stage.　while　in　Al-6Zn-2Mg　alloy,　there　are　distinct　Zn　clusters,　Zn-Mg　clusters　and　a　spot　of　Mg　clusters　in　the　atom　configurations.　The　effect　of　Mg　is　forming　Zn-Mg　short　range　order　structure　by　strong　interaction　of　Mg　and　Zn　atom.　In　Al-10Zn-1.9Mg-1.7Cu　alloy,　there　are　distinct　Zn　clusters,　Zn-Mg　clusters　and　Mg　clusters　in　the　atom　configurations.　Furthermore,　there　are　seldom　Zn-Cu　clusters,　Mg-Cu　clusters　and　Zn-Mg-Cu　clusters.　The　presence　of　Cu　stimulates　the　clustering　of　Zn　and　Zn-Mg,　while　has　no　significant　influence　on　the　clustering　of　Mg　atom.

关键词：

Aluminum alloys Atoms Binary alloys Copper alloys Intelligent systems Magnesium alloys Monte Carlo methods Precipitation (chemical) Ternary alloys Zinc alloys

作者机构：

[ 1 ] [Lin, Liu-Qiu]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Rong, Li]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Wang, Wei]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Nie, Zuo-Ren]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

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电子邮件地址：

zrnie@bjut.edu.cn

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