工艺参数对AZ31镁合金搅拌摩擦加工微观组织的影响  

Influence of Process Parameter on Microstructure of AZ31 Magnesium Alloy in Friction Stir Processing

作　　者：孙鹏[1] 王快社[1] 王文[1] 张小龙[1] 

机构地区：[1]西安建筑科技大学冶金学院,陕西西安710055

出　　处：《热加工工艺》2008年第5期99-100,103,共3页Hot Working Technology

基　　金：陕西省科技计划资助项目(2003K078-G8);西安市工业攻关项目(GG04063)

摘　　要：对AZ31镁合金板进行了搅拌摩擦加工,研究了其工艺参数(不同轴肩尺寸和旋转速度)对搅拌区和热机影响区组织的影响。结果表明,轴肩尺寸和旋转速度对加工组织影响较大,采用合适的轴肩尺寸和旋转速度可以有效地细化加工组织,获得较好的力学性能。Friction stir processing was conducted on AZ31 magnesium alloy plate. The effect of the processing parameter （size of shoulder, rotary speed） on the microstructure of stir zone and thermal mechanical zone was studied. The results indicate that the size of shoulder and the rotary speed have greatly effect on the structure of friction stir processed zone. The appropriate size of shoulder and rotary speed can effectively fine the structure of processing zone and obtain the better mechanical performance.

关 键 词：搅拌摩擦加工 搅拌摩擦焊 晶粒细化 塑性变形 

分 类 号：TG453[金属学及工艺—焊接] TG146.22[一般工业技术—材料科学与工程]