【摘要】 研究了热挤压加工对铸造AM50镁合金组织及力学性能的影响。结果表明,热挤压加工后,AM50镁合金出现沿挤压方向的条带状组织,由于发生了动态再结晶,合金的晶粒细化,从而提高了拉伸性能;断裂机制为塑性和韧性混合断裂模式。更多还原

【Abstract】 Influence of hot-extrusion treatment on microstructure and mechanical properties of AM50 magnesium alloy was studied.The results indicate that the banded microstructure appear along the extrusion direction after hot-extrusion.The grain refinement improves the tensile properties due to the dynamic crystallization.Further more,after hot-extrusion,the fracture mechanism of AM50 magnesium alloy is plastic and ductility mixed mode.更多还原