Effect of Magnesium Content on Resonance Fatigue Life of Aluminum -Magnesium Alloy FSW Weld
- DOI
- 10.2991/emcs-17.2017.57How to use a DOI?
- Keywords
- Friction stir welding; Vibration fatigue life; Magnesium content; Crack propagation; Slip zone
- Abstract
Friction stir welding (FSW) was conducted on three kinds of Al-Mg alloy of different magnesium content. Vibration fatigue life under resonant frequency was obtained according to the test standard of plane bending fatigue testing of metal plates. The crack propagation characteristic of the sample was observed with microscope and the influence of the magnesium content on resonant fatigue life of the FSW sample was also analyzed. Researches show that the resonant fatigue life of the sample with low magnesium content (about 0.44 wt%) increases after FSW, which increases from 0.9ž105 to 4.1ž105. The slip band of the FSW sample generated during FSW is beneficial to the reduction of the crack propagating driving force, thereby increasing the vibration fatigue life of the specimen. The crack propagation of high magnesium content (4.32 wt%) sample is a mixed-mode of transgranular and intergranular, which is one of the causes lead to the decrease of vibration fatigue life
- Copyright
- © 2017, 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 - Na Yang AU - Zhian Shi PY - 2017/03 DA - 2017/03 TI - Effect of Magnesium Content on Resonance Fatigue Life of Aluminum -Magnesium Alloy FSW Weld BT - Proceedings of the 2017 7th International Conference on Education, Management, Computer and Society (EMCS 2017) PB - Atlantis Press SP - 285 EP - 288 SN - 2352-538X UR - https://doi.org/10.2991/emcs-17.2017.57 DO - 10.2991/emcs-17.2017.57 ID - Yang2017/03 ER -