And the brush of high temperature gas and impact load speeded failure. The cracks on valve sur-face are primarily emerged due to inter crystalline chap, then fatigue pr...

高温燃气冲刷及冲击负荷的作用，加速了该气门的失效，其过程是由沿晶界龟裂，然后以此为裂源而引起的疲劳扩展。

youdao

And the brush of high temperature gas and impact load speeded failure. The cracks on valve sur-face are primarily emerged due to inter crystalline chap, then fatigue pr...

高温燃气冲刷及冲击负荷的作用，加速了该气门的失效，其过程是由沿晶界龟裂，然后以此为裂源而引起的疲劳扩展。

youdao