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| 冷却条件对65Mn钢磨削硬化层组织与性能的影响 | |
| 引用本文： | 刘菊东,王贵成,陈康敏,贾志宏. 冷却条件对65Mn钢磨削硬化层组织与性能的影响[J]. 工具技术, 2004, 38(9): 67-68,115 |
| 作者姓名： | 刘菊东 王贵成 陈康敏 贾志宏 |
| 作者单位： | 1. 江苏大学;集美大学 2. 江苏大学 3. 集美大学 |
| 基金项目： | 国家自然科学基金资助项目 (项目编号 :5 0 2 75 0 66)，福建省教育厅科技项目 (项目编号 :JA0 3 13 3 ) |
| 摘 要： | 通过在普通平面磨床上采用刚玉砂轮对 6 5Mn钢进行磨削硬化试验 ,研究了冷却条件对其硬化层组织与性能的影响。结果表明 ,在不同冷却条件下 ,硬化层的马氏体组织形貌及显微硬度无明显变化 ,完全硬化区显微硬度均在 810～ 870HV之间 ;干磨时 ,马氏体和碳化物含量减少 ,残余奥氏体含量增多 ,其完全硬化区深度高达1 7mm ,而湿磨时仅为 0 6mm。 |
| 关 键 词： | 冷却条件 磨削硬化 显微组织 硬化层深度 |
Effect of Cooling Condition on Microstructure and Property in Grind-Hardened Layer of 65Mn Steel |
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| Liu Judong Wang Guicheng Chen Kangmin et al. Effect of Cooling Condition on Microstructure and Property in Grind-Hardened Layer of 65Mn Steel[J]. Tool Engineering(The Magazine for Cutting & Measuring Engineering), 2004, 38(9): 67-68,115 | |
| Authors: | Liu Judong Wang Guicheng Chen Kangmin et al |
| Affiliation: | Liu Judong Wang Guicheng Chen Kangmin et al |
| Abstract: | Through the experiments in which the grind-hardening of 65Mn steel has been carried out on a conventional surface grinder with alumina grinding wheel, the effect of the cooling conditions on the microstructures and properties in grind-hardened layer were investigated. The results show that significant changes of the configuration of the martensites and micro-hardness were not observed in different cooling conditions evaluated. The micro-hardness of the completely hardened zone is 810～870HV. The content of the martensites and carbides increases, the content of the residual austensites reduces, and the depth of completely hardened region is up to 1.7mm under dry-grinding operation, however, that is only 0.6mm under wet-grinding operation. |
| Keywords: | cooling conditions grind-hardening microstructure depth of hardened layer |
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