Enhanced Mechanical Properties and Corrosion Resistance of Novel Al-Zn-Mg-Er-Zr Alloy by Two-Stage Aging Treatment - 文章详情页

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The　mechanical　properties　and　corrosion　resistance　of　a　novel　Al-Zn-Mg-Er-Zr　alloy　under　different　aging　processes　were　systematically　studied.　The　microstructure　of　the　alloy　was　analyzed　by　EBSD,　XRD,　SEM,　TEM　to　understand　the　relationship　between　the　best　comprehensive　properties　of　the　alloy　and　its　microstructure　mode.　It　was　found　that　the　excellent　two-stage　aging　process　was　90　/12　h+145　/18　h,　the　corresponding　yield　strength　and　elongation　were　388　MPa　and　14.0%,　the　susceptibility　to　exfoliation　corrosion　was　PB.　At　the　same　time,　the　main　strengthening　phases　(GP　zone　and　η′　phase)　of　the　alloy　numerously　precipitated　in　the　matrix,　the　η　phase　at　the　grain　boundary　was　discontinuous.　©　2023　Rare　Metals　Materials　and　Engineering　Press.　All　rights　reserved.

关键词：

Aluminum alloys Zinc alloys Zircaloy Corrosion resistance Magnesium alloys Grain boundaries Intergranular corrosion Aluminum corrosion Corrosion resistant alloys Microstructure

作者机构：

[ 1 ] [Chen, Jiongshen]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Rong, Li]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Wei, Wu]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Huang, Hui]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Gao, Kunyuan]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Wu, Xiaolan]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Wen, Shengping]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Qi, Peng]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China
[ 9 ] [Nie, Zuoren]Key Laboratory of Advanced Functional Materials, Education Ministry of China, Beijing University of Technology, Beijing; 100124, China

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