The results show that the air blast shock and thermal fatigue could cause a certain increase in strength, but the water quench could cause a decrease in both stress intensity factor and strength.
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释义
在风冷(高温)、水冷(低温)两种冷却条件下测定了裂纹扩展参数,结果表明:高温风冷时裂纹扩展激活能及应力强度指数比低温水冷时大,由裂纹扩展参数可进行寿命预测。
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