The transformation of LPSO type in Mg-4Y-2Er-2Zn-0.6Zr and its response to the mechanical properties and damping capacities

Dan Wang; Huajie Wu; Ruizhi Wu; Yang Wang; Jinghuai Zhang; Sergey Betsofen; Boris Krit; Legan Hou; Turahodjayev Nodir

Journal of Magnesium and Alloys (Sep 2020)

The transformation of LPSO type in Mg-4Y-2Er-2Zn-0.6Zr and its response to the mechanical properties and damping capacities

Dan Wang,
Huajie Wu,
Ruizhi Wu,
Yang Wang,
Jinghuai Zhang,
Sergey Betsofen,
Boris Krit,
Legan Hou,
Turahodjayev Nodir

Affiliations

Dan Wang: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China; Key Laboratory of New Carbon-based Functional and Super-hard Materials of Heilongjiang Province, School of Physics and Electronic Engineering, Mudanjiang normal university, Mudanjiang 157011, PR China
Huajie Wu: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
Ruizhi Wu: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China; College of Science, Heihe University, Heihe 164300, PR China; Corresponding author at: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
Yang Wang: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
Jinghuai Zhang: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
Sergey Betsofen: Coscow Aviation Institute, National Research University, Moscow 109383, Russia
Boris Krit: Coscow Aviation Institute, National Research University, Moscow 109383, Russia
Legan Hou: Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China
Turahodjayev Nodir: Department of Machine-Building Technology, Tashkent State Technical University, Tashkent 100106, Uzbekistan

Journal volume & issue: Vol. 8, no. 3
pp. 793 – 798

Abstract

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The transformation of LPSO type in Mg-4Y-2Er-2Zn-0.6Zr during heat treatment and its influence on damping and mechanical properties are reported in this work. Prior to heat treatment, the alloy consisted of α-Mg matrix and lamellar 14H LPSO phases. After 510 °C heat treatment, lamellae shortened, and their content decreased. Upon 8 h heat treatment, block 18R LPSO phases formed at the grain boundaries while 14H LPSO lamellae disappeared. Presence of block 18R LPSO phases improved mechanical and damping properties of the alloy. The corresponding mechanisms of the influence of LPSO type and morphology on mechanical and damping capacities are discussed.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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