Effect of cryogenic treatment on the fatigue crack propagation behavior of 7075 aluminum alloy
- 10.2991/meita-15.2015.82How to use a DOI?
- cryogenic treatment, fatigue crack propagation, XRD
This paper studied the effect of cryogenic treatment on the fatigue crack propagation property of 7075 aluminum alloy at a series of cryogenic temperatures using mechanics testing. Three cryogenic temperatures were chosen for cryogenic treatment: -60 , -120 and -196 . The result showed that cryogenic treatment, especially at the cryogenic temperature of -120 , can significantly improve the fatigue performance. The X-ray diffraction (XRD) result showed the cryogenic treatment caused the XRD diffraction peak intensity of (200) obvious enhanced. The tendency of XRD diffraction peak intensity of (200) was in good consistence with that of fatigue crack propagation behavior of 7075 aluminum alloy after cryogenic treatment. Therefore, the mechanism for the improvement in fatigue crack propagation property is proposed to be the preferred orientation of crystalline grains through cryogenic treatment.
- © 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 - Di Xie AU - Sujun Wu AU - Juan Guan AU - Lin Yan AU - Jinyan Cui PY - 2015/08 DA - 2015/08 TI - Effect of cryogenic treatment on the fatigue crack propagation behavior of 7075 aluminum alloy BT - Proceedings of the 2015 International Conference on Materials Engineering and Information Technology Applications PB - Atlantis Press SP - 452 EP - 458 SN - 2352-5401 UR - https://doi.org/10.2991/meita-15.2015.82 DO - 10.2991/meita-15.2015.82 ID - Xie2015/08 ER -