Title of article
Microstructure and mechanical property of Mg–8.31Gd–1.12Dy–0.38Zr alloy
Author/Authors
Peng، نويسنده , , Qiuming and Dong، نويسنده , , Hanwu and Wang، نويسنده , , Lidong and Wu، نويسنده , , Yaoming and Wang، نويسنده , , Limin، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
5
From page
193
To page
197
Abstract
The Mg–8.31Gd–1.12Dy–0.38Zr (mass%) alloy was prepared by casting technology, and the microstructure, age hardening behavior and mechanical property have been investigated. It is noted that the α-Mg and the different Mg-RE (RE = Gd/Dy) compounds are subsistent in the as-cast and annealed state samples. The age hardening behavior is observed during the investigated temperature range, and the alloy exhibits high Vickers hardness, excellent ultimate tensile strength and yield strength at peak hardness. The peak hardness and time of reaching peak hardness decrease with the increase of aging temperature. The high mechanical property is mainly attributed to the dispersed fine β′-Mg15RE3 and β-Mg5RE precipitates.
Keywords
Mg–Gd–Dy–Zr alloy , microstructure , Age hardening behavior , Mechanical Property
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Serial Year
2008
Journal title
MATERIALS SCIENCE & ENGINEERING: A
Record number
2153748
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