| 齿座裂纹分析 |
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| 引用本文： | 曾振鹏,张惠娟,戴嘉维. 齿座裂纹分析[J]. 理化检验(物理分册), 2000, 36(12): 562-564 |
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| 作者姓名： | 曾振鹏 张惠娟 戴嘉维 |
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| 作者单位： | 上海交通大学教育部高温材料及高温测试重点实验室,上海,200030 |
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| 摘 要： | 采用金相分析方法分析了齿座表面裂纹的性质和产生原因。根据齿座表面裂纹主要呈沿晶扩展，裂纹两侧无脱碳和氧化现象，认为该裂纹为淬火裂纹。渗碳温度过高、晶粒粗大、材质不良是产生淬火裂纹的原因。
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| 关 键 词： | 淬火裂纹 渗碳 金相分析 表面裂纹 裂纹分析 晶粒 脱碳 齿座 |
| 修稿时间： | 2000-02-14 |
ANALYSIS ON THE CRACKING OF GEAR-BED |
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| Zeng Zhenpeng,Zhang Huijuan,Dai Jiawei. ANALYSIS ON THE CRACKING OF GEAR-BED[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2000, 36(12): 562-564 |
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| Authors: | Zeng Zhenpeng Zhang Huijuan Dai Jiawei |
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| Affiliation: | Zeng Zhenpeng,Zhang Huijuan,Dai Jiawei;(Key Laboratory of State Education Commission for High Temperature Materials and Testing, Shanghai Jiao Tong University) |
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| Abstract: | Metallographic method is used to analyze the characterization of surface cracking of the gear bed. Results show that the crack is mainly intergranular and there is no decarburization and oxidation at the edge of the crack. Such crack belongs to quenching crack, which is caused by too high temperature for carburization, coarse grains and bad original materials. |
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| Keywords: | Gear-bed Quenching crack Carburization Lamellar structure |
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