Degassing of magnesium alloy by rotating impeller degasser Part 2 – effect on microstructure and mechanical properties

摘要: AbstractMagnesium alloy shows great potential application in automatic industry. In production practice, recycled magnesium alloys are normally used order to reduce the costs. this work, a rotary impeller was degas AZ91 with 10 wt-% investigate effect of degassing on mechanical properties. Microstructure and fracture surface samples without were observed by SEM reveal control mechanism. Mechanical properties measurements have shown that significantly increased tensile strength especially elongation as cast alloy. observation indicated high hydrogen content resulted an increase shrinkage casting, which contributes low Casting condition also affected influence High permane...