高强钢焊缝金属强韧性研究进展

曹睿, 刘梓申

Research Progress on the Strength and Toughness of High-Strength Steel Weld Metal

CAO Rui, LIU Zishen

图6 预回火对高强钢焊缝金属显微组织和冲击韧性的影响[83]

Fig.6 Effects of pre-tempering on microstructure and impact toughness of high-strength steel weld metal[83] (a1-a3) heat treatment process diagrams of tempered (types II and III) (a1, a2) and pre-tempered + tempered (type IV) (a3) (b) impact energies of types I-IV weld metals (type I—as-welded) (c1-c4) microstructures of types I (c1), II (c2), III (c3), and IV (c4) weld metals