硅、锰对铸态ZA-27合金组织性能的影响

Effect of Silicon and Manganese on Mechanical Properties and Microstructure of As-Cast ZA-27 Alloy

采用正交组合回归设计试验方法,研究了硅、锰元素对铸态ZA-27合金力学性能的影响规律,分析了硅、锰元素对合金组织的影响。研究结果表明,硅、锰元素对ZA-27合金的室温硬度、100℃硬度、抗压强度和冲击韧性都有显著影响。适当控制硅、锰含量,并加入稀土元素进行变质处理,可得到具有较高强韧性的耐磨锌合金。

The orthogonal regressive method was adopted to study the effect of Si and Mn on the mechanical properties and microstructure of as-cast ZA-27 alloy. The results showed that Si and Mn have a notable influence on ZA-27 alloy＇s hardness at room temperature hardness at 100℃, compression strength and impact toughness. Through adding appropriate amount of Si and Mn, and modified by RE, the wear-resisting zinc alloy with high strength and toughness can be obtained.