铸态ZA合金时效后的组织与性能以及变质处理的影响

Microstructures and Properties of Cast ZA Alloys After Ageing and the Effect of Modification

本文对铸态ＺＡ－１２和ＺＡ－２７合金及其经变质处理后的ＺＡ－１２Ｍ和ＺＡ－２７Ｍ在９５℃水蒸汽中时效后的组织及性能进行了分析研究。给出了这些合金的机械性能和时效时间之间的关系曲线，并对合金的金相组织和稀土元素的作用进行了分析讨论。

緾ast ZA-12 and ZA-27 alloys as well as ZA-12M and ZA-27M alloys modified by rare-earth elements and Ti were aged in the water vapour at 95℃，The microotructures and mechanical properties of the aged alloys are investigated，and the relationships between the properties and the ageing time are given by the dlagrams．The microstructures and the effects of rare-earth elements on these alloys are discussed．【