新型低合金化高强Mg-0.2Ce-0.2Ca合金挤压过程中的组织演变机理

李景仁, 谢东升, 张栋栋, 谢红波, 潘虎成, 任玉平, 秦高梧

Microstructure Evolution Mechanism of New Low-Alloyed High-Strength Mg-0.2Ce-0.2Ca Alloy During Extrusion

LI Jingren, XIE Dongsheng, ZHANG Dongdong, XIE Hongbo, PAN Hucheng, REN Yuping, QIN Gaowu

图3 Mg-0.2Ce-0.2Ca合金挤压过程组织演变OM像

Fig.3 OM images of the interrupted extrusion sample of Mg-0.2Ce-0.2Ca alloy (a) low magnified microstructure near the die exit (Inset shows the view surface diagram) (b-d) magnified microstructures right below the die exit at the locations as marked by rectangles in Fig.3a