Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 22    No. 4    April 2012

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Effect of zirconium addition on microstructure and
mechanical properties of Mg97Y2Zn1 alloy
CHEN Bin, LU Chen, LIN Dong-liang, ZENG Xiao-qin

School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Abstract:The effects of zirconium addition on the microstructure and mechanical properties of Mg97Y2Zn1 alloy were investigated. The microstructure of as-cast Mg97Y2Zn1 alloy is refined by the addition of zirconium. During the extrusion, the initial nucleation sites of the alloy are mainly original grain boundaries and secondary phase. The addition of zirconium could stimulate the DRX process because more grain boundaries are formed, which increases the dynamic recrystallization rate. Both the strength and elongation of the alloy are increased by the addition of zirconium.

 

Key words: Mg97Y2Zn1; zirconium; microstructure; mechanical properties

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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