Microstructural evolution and resulting mechanical properties in Mg-2MM-2Sn-X (X = Al and/or Zn) alloys have been investigated. The specimens were fabricated by hot-rolling. The tensile tests were performed at room temperature and 200 °C. The rollability and mechanical properties of specimens are improved with the addition of Al and/or Zn in Mg-MM-Sn alloy. Especially, annealed Mg-2MM-2Sn-1Zn sheet exhibits a good combination of strength and elongation-to-fracture. The result of conical cup test at 200 °C with punch speed of 50 mm/min shows that the addition of Al and/or Zn also improves the formability of Mg-MM-Sn alloys. Moreover, alloy containing Zn showed the best formability. The effects of texture and c/a ratio on formability have been discussed.
Bibliographical noteFunding Information:
This study was supported by a grant from the Fundamental R&D Program for Core Technology of Materials funded by the Ministry of Commerce, Industry and Energy, Republic of Korea. Hyun Kyu Lim and Ju Youn Lee are grateful for the support from the Second Stage of Brain Korea 21 Project in 2007.
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry