摘要
采用取像显微分析技术分析了变形镁合金AZ80A搅拌摩擦焊焊核区塑性条带间的金属学演变过程。结果表明:搅拌摩擦焊搭接头焊核区晶粒尺寸、极图、反极图以及晶粒的取向差均呈周期性的变化,组织结构呈条带分布,基体内部经历了周期性的动态再结晶过程。
The effect of the observed microstructural evolutions of the nugget zone in magnesium alloy AZ80A friction stir welds（FSW） was discussed by using the new technique of orientation imaging microscopy（OIM）. The results showed that there were the cyclical natures of the grains size, pole figures, inverse pole figures and the distribution of misorientation. It was concluded that recrystallized grains in the nugget zone formed by a continuous dynamic recrystallized mechanism.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2007年第5期53-56,共4页
Journal of Materials Engineering
基金
江西省自然科学基金资助项目(0450090)
江西省教育厅科技项目赣教技字2007181
关键词
极图
反极图
织构
镁合金
搅拌摩擦焊
pole figure
inverse pole figure
texture
magnesium alloy
FSW
