热冲压成形钢的强度与塑性及断裂应变
易红亮1,2(
),常智渊1,才贺龙1,杜鹏举1,杨达朋1
),常智渊1,才贺龙1,杜鹏举1,杨达朋1
Strength, Ductility and Fracture Strain ofPress-Hardening Steels
YI Hongliang1,2(),CHANG Zhiyuan1,CAI Helong1,DU Pengju1,YANG Dapeng1
),CHANG Zhiyuan1,CAI Helong1,DU Pengju1,YANG Dapeng1
图3. 22MnB5、34MnB5V原奥氏体晶界和34MnB5V的TEM像
Fig.3. Prior austenite grain boundaries of 22MnB5 (a) and 34MnB5V (b) austenitized for 4 min at 900 ℃, and TEM images of quenched lath martensite (c) and VC precipitation particles (d) in 34MnB5V
