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16. Al-Si镀层热冲压零件涂装烘烤之后的弯曲载荷-位移曲线以及压溃后零件裂纹扩展情况
Fig.16. Bending load-displacement curves (a, b) and crack propagation after crushing (c~e) of Al-Si coated press hardening parts for the pre-coating thicknesses of 25 μm and 10 μm(a) hot stamped (b) hot stamped and baked (Crack extension of the hot stamped and baked parts by crush)(c) 14 d after crushing (10 μm) (d) 14 d after crushing (25 μm) (e) brittle fracture morphology (25 μm)
