Research on friction stir welded joints of Copper to Magnesium alloy
- DOI
- 10.2991/ismems-16.2016.53How to use a DOI?
- Keywords
- Mg/Cu dissimilar joint, FSW, Microstructure, Mechanical properties
- Abstract
Dissimilar magnesium alloy AZ31 and pure copper sheets with a thickness of 5mm were successfully friction stir welded. Microstructure and mechanical properties of the butt joints were investigated. Complicated microstructure was formed in the nugget zone, in which vortex-like pattern and lamella structure could be found. CuMg2 intermetallic compounds were found in the nugget zone. The hardness of the stir zone was much higher than that of the base material. The maximum value of hardness existing in the middle of the stir zone. Hardness values near the Mg side were relatively higher than that of near the Cu side in the weld zone. The ultimate tensile strength (UTS) of the joint was 86MPa and the joint failed with a brittle fracture modeDissimilar magnesium alloy AZ31 and pure copper sheets with a thickness of 5mm were successfully friction stir welded. Microstructure and mechanical properties of the butt joints were investigated. Complicated microstructure was formed in the nugget zone, in which vortex-like pattern and lamella structure could be found. CuMg2 intermetallic compounds were found in the nugget zone. The hardness of the stir zone was much higher than that of the base material. The maximum value of hardness existing in the middle of the stir zone. Hardness values near the Mg side were relatively higher than that of near the Cu side in the weld zone. The ultimate tensile strength (UTS) of the joint was 86MPa and the joint failed with a brittle fracture modeDissimilar magnesium alloy AZ31 and pure copper sheets with a thickness of 5mm were successfully friction stir welded. Microstructure and mechanical properties of the butt joints were investigated. Complicated microstructure was formed in the nugget zone, in which vortex-like pattern and lamella structure could be found. CuMg2 intermetallic compounds were found in the nugget zone. The hardness of the stir zone was much higher than that of the base material. The maximum value of hardness existing in the middle of the stir zone. Hardness values near the Mg side were relatively higher than that of near the Cu side in the weld zone. The ultimate tensile strength (UTS) of the joint was 86MPa and the joint failed with a brittle fracture mode
- 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/).
Cite this article
TY - CONF AU - Yuhua Chen AU - Jilin Xie AU - Wenming Cao PY - 2016/12 DA - 2016/12 TI - Research on friction stir welded joints of Copper to Magnesium alloy BT - Proceedings of the International Symposium on Mechanical Engineering and Material Science PB - Atlantis Press SP - 310 EP - 315 SN - 2352-5401 UR - https://doi.org/10.2991/ismems-16.2016.53 DO - 10.2991/ismems-16.2016.53 ID - Chen2016/12 ER -