真空渗碳处理齿轮钢的氢脆敏感性

肖娜, 惠卫军, 张永健, 赵晓丽

Hydrogen Embrittlement Behavior of a Vacuum-Carburized Gear Steel

XIAO Na, HUI Weijun, ZHANG Yongjian, ZHAO Xiaoli

表1 QT试样及渗碳试样的SSRT实验结果汇总

Table 1 Summaries of the SSRT results of the QT and carburized specimens

Specimen Condition σ / MPa A / % Z / % HEI / % QT Uncharged 1462 16.4 62.2 54.3 Hydrogen-charged 1466 7.5 33.0 Carburized Uncharged 1968 5.5 4.7 90.9 Hydrogen-charged 812 0.5 0.0