AZ31镁合金双峰组织形成机制及其变形行为

周雯慧, 熊锦涛, 黄思程, 王鹏昊, 刘勇

Formation Mechanism and Deformation Behavior of AZ31 Magnesium Alloy Bimodal Structure

ZHOU Wenhui, XIONG Jintao, HUANG Sicheng, WANG Penghao, LIU Yong

表1 不同成型方式AZ31镁合金力学性能比较[7,22~26]

Table 1 Comparisons of mechanical properties of the AZ31 magnesium alloy conventionally and/or severely deformed by means of various metal forming techniques[7,22-26]

Reinforcement method YS / MPa UTS / MPa EL / % Ref. Coarse-grain 43 ± 4 170 ± 9 13 ± 0.9 This work Bimodal structure 77 ± 9 217 ± 12 18 ± 0.7 Fine-grain 112 ± 12 265 ± 14 19 ± 1.0 Grain refinement - 200 ± 6 16 ± 1.0 [7] Suppressing intergranular deformation 380 ± 7 430 ± 11 13 ± 0.8 [22] Grain refinement and texture change 220 ± 4 253 ± 7 13 ± 0.9 [23] Grain refinement 250 ± 7 310 ± 10 14 ± 1.0 [24] Grain refinement 203 ± 6 200 ± 10 12 ± 1.0 [25] Grain refinement - 290 ± 5 13 ± 0.6 [26]