Dislocation evolution and induced precipitation on corrosion resistance of a novel Al-Mg-Zn-Er-Zr alloy during hot compression - Details

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Abstract：

Al-Mg-Zn-Er-Zr　alloy　was　compressed　in　temperature　range　from　300　to　500 °C　to　investigate　the　microstructure　evolution.　Molecular　dynamics　simulations　were　used　to　study　the　mechanical　behavior　and　dislocation　evolution.　The　results　showed　that　mobile　dislocations　are　widely　distributed　in　alloys　and　make　important　contributions　to　coordinate　compressive　deformation.　The　sessile　dislocations　hinder　the　deformation,　and　the　content　is　about　1/20　of　that　of　mobile　dislocations.　Continuous　dynamic　recrystallization　(CDRX)　is　considered　to　be　the　main　recrystallization　mechanism.　The　accumulation　of　dislocations　can　provide　element　diffusion　channels　and　driving　force　for　τ　(Mg32[Al,　Zn]49)　phase　precipitation,　resulting　in　the　forced　precipitation　of　discontinuous　τ　phase　to　replace　the　continuous　β　phase　(Al3Mg2),　which　reduces　the　corrosion　potential,　resulting　in　increased　corrosion　resistance.　Graphical　abstract:　[Figure　not　available:　see　fulltext.].　©　2023,　Youke　Publishing　Co.,Ltd.

Keyword：

Corrosion Dislocation Al-Mg-Zn-Er-Zr alloy Mg32(AlZn)49 phase Molecular dynamics

Author Community：

[ 1 ] [Xue D.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Wei W.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 3 ] [Shi W.]Institute of Corrosion Science and Technology, Guangzhou, 510530, China
[ 4 ] [Zhou X.-R.]Department of Materials, The University of Manchester, Manchester, M13 9PL, United Kingdom
[ 5 ] [Wen S.-P.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 6 ] [Wu X.-L.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 7 ] [Gao K.-Y.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 8 ] [Rong L.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 9 ] [Qi P.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 10 ] [Huang H.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
[ 11 ] [Nie Z.-R.]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing, 100124, China

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Source ：

Rare Metals

ISSN： 1001-0521

Year： 2023

Issue： 7

Volume： 42

Page： 2371-2380

8 . 8 0 0

JCR@2022

ESI Discipline： MATERIALS SCIENCE;

ESI HC Threshold：26

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count： 15

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 15

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