... crack extension resistance 抗裂纹扩展力 crack propagation resistance 裂纹扩展抗力 Crack Resistance 抗裂性 ...
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试验得出，残余奥氏体可阻止疲劳裂纹的萌生和扩展，提高冲击疲劳抗力，降低冲击疲劳磨损。
It is indicated that retained austenite in microstructure can inhibit the initiation and propagation of fatigue crack, improve the resistance to impact fatigue and decrease impact fatigue wear.
结果表明，稀土能推迟裂纹萌生的时间，降低裂纹扩展速率，提高其冲击疲劳抗力。
The experimental results show that adding rare earth into cast semi steel can defer the time of forming fatigue crack, reduce the speed of crack propagating and increase the impact fatigue resistance.
加入0.3 ？的合金不论在裂纹萌生阶段还是裂纹扩展阶段，其热疲劳抗力都优于其它成分的合金。
The thermal fatigue resistance of alloy with 0.3? Addition is superior to that of other alloys, during crack initiating and propagating.
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