两次淬火对HSLA钢组织和冲击韧性的影响
陈刚, 罗小兵, 柴锋, 杨才福, 张正延, 杨志刚

Effect of Double Quenching on Microstructure and Impact Toughness of a High Strength Low Alloy Steel
CHEN Gang, LUO Xiaobing, CHAI Feng, YANG Caifu, ZHANG Zhengyan, YANG Zhigang
表1 两种热处理工艺下实验钢力学性能
Table 1 The mechanical properties of the investigated steel by different heat treatments
ProcessesUltimate tensile strengtd/MPa

Yield strengtd

/MPa

Elongation to failure/%Reduction area/%-120℃ Impact energy/JPercentage of ductile fracture surface/%
CQT74070022.58118658
DQT70766222.58326689