摘要
采用超声疲劳试验技术对高强度中碳钢1238的超高周疲劳性能进行了研究，用扫描电镜对疲劳断口进行了分析。结果表明：高强度中碳钢C38的S-N曲线并没有呈现阶梯状，超过10^7-10^8次应力循环后，试样仍会继续发生破坏。
The ultra-long-life fatigue property of high-strength medium-carbon steel C38 is studied with ultrasonic fatiguetest, the fatigue fracture surface analyzed with scanning electron microscope. It is showed fi＇om result that the S - N curve of C38 is not presented as stairs, and the sample can still be broken under the stress cycles beyond 10^7 - 10^8.
出处
《河北冶金》
2009年第3期14-16,共3页
Hebei Metallurgy
关键词
高强度中碳钢C38
寿命
疲劳性能
研究
high-strength medium-carbon steel C38
lffe fatigue property study
