通过蔡司扫描电子显微镜及能谱仪测试分析了E2330轴承内套滚道剥落的原因。结果表明：由于E2330轴承内套成分不均,引起轴套内局部的碳、铬元素浓度的偏高,形成大量大块呈圆形碳化物、淬火组织和残余应力的分布不均匀即增加了基体脆性,导致了E2330轴承内套早期剥落失效。
By means of Zeiss scanning electron microscope and energy-dispersive spectroscope (EDS), the causes for raceway peel off of E2330 bearings inside set of groove are determined. The results show that; because of the une- ven compositions inside E2330 bearing inner ring, concentration of carbon and chromate in the part of the inner ring is on the high side. A large chunk of a round carbide is formed and the uneven distribution of quenching organization and residual stress increases the matrix brittle, leading to the early failure of spalling of E2330 bearing inner ring.
参考文献
| [1] | 雷建中.国内外轴承失效分析[A].南通,2007 |
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