Microstructure and high-temperature mechanical properties of Mg-6Al magnesium alloy containing yttrium

作者：Li Quan An^*; Li Jian Hong; Xie Jian Chang; Li Ke Jie; Zhang Xing Yuan

来源：Transactions of Materials and Heat Treatment, 2009, 30(3): 127-131.

• Al alloys
• High melting
• High temperature
• High temperature mechanical property
• Mg-Al alloys
• Optimal microstructure
• Yield strength

Effects of adding rare-earth Y in Mg-6Al alloy on its microstructure and high-temperature mechanical properties were investigated. The results show that addition of Y in Mg-6Al alloy dramatically enhances yield strength and tensile strength at 20°C-200°C for the alloy under aged state. Adding 0.6wt%-2.4wt% Y, the microstructure of the aged Mg-Al alloy is remarkably refined, and dot-like Al2Y phase with high melting-point forms in the alloy. The optimal microstructure and mechanical properties of the Mg-6Al alloy with 1.2wt% Y are obtained in this study.

• 出版日期2009
• 单位河南大学