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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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The influence of hydrogen on ultra-high cycle fatigue properties of high strength spring steel 50CrV4
氢对高强弹簧钢50CrV4超高周疲劳性能的影响
LI Yongde, LI Shouxin, YANG Zhenguo, LIU Yangbo, Rong Lijian, HUI Weijun, WENG Yuqing,
李永德, 李守新, 杨振国, 柳洋波, 戎利建, 惠卫军, 翁宇庆
Keywords: spring steel,hydrogen,ultrahigh cycle fatigue,inclusion cluster,Basquin equation spring steel,hydrogen,ultrahigh cycle fatigue,inclusion cluster,Basquin equation
弹簧钢,氢,超高周疲劳,夹杂团簇,Basquin方程
Abstract:
制备了3种不同氢含量的高强弹簧钢50CrV4样品(淬火,回火样品,0.6×10-6;真空退火样品,0.2×10-6;高温高压热充氢样品, 2.5×10-6).SEM观察表明,疲劳断口内部起裂源为小夹杂团簇;疲劳强度测试表明,随氢含量(c)的增加,疲劳强度基本上按σ0-α exp(c)规律降低, Basquin方程中的Basquin指数随氢含量的增加有明显变化. Full-Text
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