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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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GCr15轴承钢超高周疲劳性能与夹杂物相关性
, PP. 968-972
Keywords: GCr15轴承钢,超高周疲劳,电渣重熔
Abstract:
真空冶炼与电渣重熔2种工艺制备的GCr15轴承钢的超高周疲劳测试结果表明,电渣重熔能更好地控制钢中夹杂尺寸及其分散性,因此具有较好的疲劳性能.实验与理论分析表明,对于一定强度的材料,疲劳萌生处的颗粒亮区(GBF)边界处的应力强度因子范围(αKGBF$)为一恒定值,且随材料的屈服强度增加αKGBF逐渐减小.
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