Materials | |
Microstructure and Properties of Mg-Al-Ca-Mn Alloy with High Ca/Al Ratio Fabricated by Hot Extrusion | |
Rafi ud-din1  Yuping Zhao2  Aimin Chu3  Hairong Hu3  Qian Zhi3  Zerui Wang3  | |
[1] Materials Division, PINSTECH, Post Office Nilore, Islamabad 44000, Pakistan;School of Civil and Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; | |
关键词: Mg alloys; high Ca/Al ratio; mechanical properties; hot extrusion; | |
DOI : 10.3390/ma14185230 | |
来源: DOAJ |
【 摘 要 】
Mg-Al-Ca-Mn alloys with Ca/Al ≥ 1 of AX33, AX44, and AX55 were prepared by combining three processes of water-cooling semi-continuous cast, homogenization heat treatment, and hot extrusion. The as-fabricated alloys translated into composites consisting of α-Mg solid solution + granular Al2Ca. These alloys exhibited some favourable properties such as a tensile strength of 324~350 MPa at room temperature and 187~210 MPa at elevated temperature of 423 K, an ignition temperature of 1292~1344 K, and so on. Variation trend between performance and content of Al and Ca is given in this paper. The result indicated that the emerged second-phase Al2Ca in the alloys was beneficial to the improvement in mechanical properties, heat resistance, flame retardation, and corrosion resistance.
【 授权许可】
Unknown