调质热处理对不同轧制温度的含Cu低合金高强钢力学性能的影响
王恒霖, 丁汉林, 柴锋, 罗小兵, 王子健, 项重辰

Effect of Quenched-tempered Heat Treatment on Microstructure and Precipitation of High Strength Low Alloy Steel Containing Copper After Being Hot Rolled at Different Temperatures
WANG Henglin, DING Hanlin, CHAI Feng, LUO Xiaobing, WANG Zijian, XIANG Chongchen
表3 调质态T1~T6试样的力学性能
Table 3 Mechanical properties of quenched and tempered samples T1~T6
SamplesT1T2T3T4T5T6
StrengthRp0.2 / MPa686717680700690691
Rm / MPa727751725736735730
A / %18.52118212021
Z / %7574.573.573.574.573
Impact energyAKv(-40 oC) / J236264264258267254
AKv(-84 oC) / J213201216198182199