Torsional Property of Mg-Gd-Y-Zr Magnesium Alloy

DOI

10.2991/icmse-16.2016.38How to use a DOI?

Keywords

Mg-Gd-Y-Zr alloy; Torsion property; Cryogenic treatment; Shear fracture.

Abstract

The torsion behavior tests on Mg-Gd-Y-Zr magnesium alloy have performed before and after liquid nitrogen cryogenic treatment (CT) by torsional test machine. The experimental results show that the torsional strength and plasticity of the alloys have been significantly improved after CT 72h and 96h, compared to untreated test specimens. The torsion angles before breakage increase with the increase of CT duration. The SEM fracture surface morphology shows that maximum shear stresses on cross section are major reason for the damage. The torsional shear stress increases from 217.1MPa to 235. 9MPa after CT 96h, increasing by about 9%; the torsion angle increases from 499.3oto 594.5oafter CT 96h, increasing by about 19%. The second precipitated phase and multi-system slip are response to the higher strength and plasticity.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wen-Jie Guo
AU  - Li-Jie Cao
AU  - Yu-Juan Wu
PY  - 2016/12
DA  - 2016/12
TI  - Torsional Property of Mg-Gd-Y-Zr Magnesium Alloy
BT  - Proceedings of the 4th 2016 International Conference on Material Science and Engineering (ICMSE 2016)
PB  - Atlantis Press
SP  - 229
EP  - 234
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-16.2016.38
DO  - 10.2991/icmse-16.2016.38
ID  - Guo2016/12
ER  -