搅拌摩擦加工后Mg-Zn-Nd-Zr合金的动态应力-应变行为  

Effect of Friction Stir Processing on Microstructure and Properties of AZ91

作　　者：吕勤云[1] 王春净[1] 高运奎[1] 

机构地区：[1]空军第一航空学院,河南信阳464000

出　　处：《机电产品开发与创新》2011年第2期83-85,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：选取Mg-Zn-Nd-Zr镁合金,制定三种工艺参数对它进行搅拌摩擦加工处理(FSP)。利用Hop-kinson压杆实验装置对FSP处理前后的Mg-Zn-Nd-Zr合金进行动态冲击实验,通过分析其动态应力-应变曲线的应变率特性,研究FSP加工前后该合金的动态力学性能的变化情况。结果表明:FSP加工使Mg-Zn-Nd-Zr合金的动态力学性能得到很大提高。Friction stir processing was applied to Mg-Zn-Nd-Zr magnesium alloy with 3 different parameters.The dynamic experiments for Mg-Zn-Nd-Zr alloy was carried out using the Hopkinson pressure bar,then we got the stress-strain curves of Mg-Nd-Zn-Zr alloy.We have researched the variation of the alloy fore-and-aft FSP by analyzing the stress-strain curves.The results show that the technology of FSP can improve the dynamic properties of Mg-Zn-Nd-Zr alloy considerably.

关 键 词：Mg-Zn-Nd-Zr镁合金 搅拌摩擦加工 动态应力-应变 

分 类 号：TH16[机械工程—机械制造及自动化]