Effect of Pre-stretching Process on Quenching Residual Stress of EW75 Magnesium Alloy
- 10.2991/icadme-15.2015.23How to use a DOI?
- EW75 magnesium alloy, Pre-stretching; microstructure, mechanical properties, residual stress
This paper studies the effect of pre-stretching process on the residual stress and mechanical properties of EW75 magnesium alloy by OM and mechanical tests, etc. The results show that the bend deformation caused by the release of quench residual stress increases after machining into the pre-stretching sample. For the pre-stretching rate of 1.0%,1.5%,2.0% and 2.5%, the strain stress curves are similar and rebound phenomenon happens after unloading and varying degrees of twin deformation happens both in the surface and the core. When the deformation rate is 1%, the ultimate tensile strength of the material increases 20%, the yield strength increases 43%, while the fracture elongation reduced 30% subsequently. As the pre-stretching rate continues to increase, the yield strength, ultimate tensile strength and elongation are little changing.
- © 2015, 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/).
Cite this article
TY - CONF AU - Xinggang Li AU - Hongbin Liao AU - Minglong Ma AU - Jiawei Yuan AU - Ting Li AU - Dongjie Chen AU - Kui Zhang PY - 2015/10 DA - 2015/10 TI - Effect of Pre-stretching Process on Quenching Residual Stress of EW75 Magnesium Alloy BT - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering PB - Atlantis Press SP - 109 EP - 113 SN - 2352-5401 UR - https://doi.org/10.2991/icadme-15.2015.23 DO - 10.2991/icadme-15.2015.23 ID - Li2015/10 ER -