应力三轴度对淬火态硼钢氢脆敏感性的影响

张渤涛, 李淑慧, 李永丰, 韩国丰

Effect of Stress Triaxiality on Hydrogen Embrittlement Susceptibility of Quenched Boron Steel B1500HS

ZHANG Botao, LI Shuhui, LI Yongfeng, HAN Guofeng

表2 代表三种不同应力三轴度的试样在预充氢和未充氢情况下的拉伸极限等效塑性应变

Table 2 Limiting equivalent plastic strain of H-free and H-charged samples for three kinds of stress triaxiality

Sample Equivalent plastic strain H-free H-charged Uniaxial tensile 0.225 0.018±0.005 Notched 0.167 0.022±0.002 Simple shear 0.396 0.203±0.005