低碳低合金钢焊缝熔覆金属针状铁素体的回火稳定性
胡富昇, 成林, 侯廷平, 程石, 宋峰雨, 吴开明

High-Temperature Stability of Acicular Ferrite in a Low-Carbon Low-Alloy Steel Weld Metal
HU Fusheng, CHENG Lin, HOU Tingping, CHENG Shi, SONG Fengyu, WU Kaiming
表1 焊缝熔敷金属试样在焊态及不同温度和时间回火后夹杂物数量、尺寸及体积分数
Table 1 Numbers, sizes, and volume fractions of inclusions of weld metal specimens at as-welded state and tempering at different temperatures and time
ConditionNumberDiameterμmVolume fraction / %
As-welded7522.240.125
580 oC, 12 h7652.190.121
640 oC, 12 h7382.160.115
720 oC, 2 h7232.170.113