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

表1 高强钢焊缝金属显微组织含量与C当量的关系^[8]

Table 1 Relationship between volume fraction of microstructure and carbon equivalent (CE) of high-strength steel weld metals^[8]

CE	f_AF / %	f_GB / %	f $_{B_{U}}$ / %	f $_{B_{L}}$ / %	f_LM / %
0.240-0.265	20-45	≈ 10	20-30	5	30-50
0.265-0.275	10-20	10	15-25	5	50-65
0.272-0.285	5-15	10	10-20	5	60-75
0.285-0.295	5-12	5	10-15	5	70-85
0.293-0.300	10	5	10	5	80-95
0.300	0	0	5	5	95-100