热处理对Mg-9Al-1Ca组织和性能的影响

Effects of Heat Treatment on Microstructure and Properties of Mg-9Al-1Ca Alloy

通过添加Ca到镁合金可以提高合金的阻燃性能,同时也研究了热处理对Mg-9%Al-1%Ca组织和性能的影响。结果表明,Mg-9%Al-1%Ca合金经过退火后,合金组织中出现连续或半连续的网状Al2Ca相,反而提高了合金的硬度;Mg-9%Al-1%Ca合金淬火后,晶粒变大,组织中出现Al2Ca,并以连续的网状相分布于基体,硬度增加。

The Ca addition in Magnesium alloys significantly raises ignition-proof performance.The effects of heat treatment on microstructure and properties of Mg-9%Al-1%Ca alloy were investigated.The results show that the continuous or semi-continuous network Al2Ca phase exists in the microstructure of the alloy after annealed.So the hardness of the alloy is improved.After quenching,the grain size becomes bigger,and the continuous or network Al2Ca phase exists in the microstructure of the alloy,therefore the hardness of the alloy improves.