挤压
材料科学
冶金
镁合金
锻造
合金
粒度
延展性(地球科学)
蠕动
作者
Peng Peng,Jia She,Aitao Tang,Jianyue Zhang,Shining Zhou,Xiang Xiong,Fusheng Pan
标识
DOI:10.1016/j.msea.2019.138144
摘要
Highly-uniform ultrafine Mg–3Al–1Zn alloy was successfully fabricated by a simple conventional extrusion method called continuous forging extrusion (CFE). After CFE, the average grain size of Mg–3Al–1Zn alloy was refined to 0.6 μm. The ultra-fine grain (UFG) AZ31 alloy exhibited an excellent combination of yield strength of 307 MPa and ductility of 26.3%. The improved mechanical properties were mainly attributed to grain boundary strengthening and texture weakening. The formation of dynamic recrystallized submicron grain in the CFE was also discussed.
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