热成形汽车钢的弯曲韧性与氢脆行为研究进展
杜德灏1,2,3, 管明1,2, 曹祚恒1,2, 王铭1,2(
), 何斌斌3, 黄明欣1,2()
), 何斌斌3, 黄明欣1,2()
A Review of Current State and Prospects of the Bendability and Hydrogen Embrittlement Behavior of Press- Hardening Automobile Steels
DU Dehao1,2,3, GUAN Ming1,2, CAO Zuoheng1,2, WANG Ming1,2(), HE Binbin3, HUANG Mingxin1,2()
), HE Binbin3, HUANG Mingxin1,2()
图2. 不同两步奥氏体化工艺下的镀层结构和弯曲断裂韧性[
Fig.2. Coating structures and bending fracture toughnesses under different double austenitization (DA) conditions (The SA number indicates the austenitization temperature, and the DA numbers indicate the first austenitization temperatures)[
(a) Al profile within the interdiffusion ferrite layer under different DA conditions
(b) resulting bending angles, compared with those of a traditional single austenitization (SA) sample
(c1, c2, d1, d2) electron backscatter diffraction (EBSD) inverse pole figures (IPFs) (c1, d1) and local misorientation maps (c2, d2) of major cracks in Al-Si coating structures on DA 930 sample bent at 46° (c1, c2) and DA 1100 sample bent at 58° (d1, d2)
