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3. 热冲压前后的热浸镀纯Zn (GI)镀层示意图及液态金属脆化(LME)过程[
Fig.3. Schematic of hot-dip galvanized Zn (GI) coating before and after press hardening (a), cross-sectional morphologies of liquid metal embrittlement (LME) cracks and EDS analysis illustrating the distribution of Zn elements on the coated surface of 22MnB5 steel (Yellow arrows indicate the presence of LME cracks) (b), the process of LME occurrence during press hardening of Zn-coated steels (c), and processing window of the press hardening process for Zn and Al-Si coatings (d)[
