| 离子渗氮层的冲蚀及破坏机理的研究 |
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| 引用本文： | 刘科高,韩善灵.离子渗氮层的冲蚀及破坏机理的研究[J].山东建筑工程学院学报,1999,14(4):75-79. |
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| 作者姓名： | 刘科高 韩善灵 |
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| 作者单位： | 山东建筑工程学院材料工程系!山东济南250014(刘科高)，山东建筑工程学院力学研究所!山东济南250014(韩善灵)，山东工业大学材料科学与工程学院!山东济南250061(彭其凤) |
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| 摘 要： | 研究了３８ＣｒＭｏＡｌ、４０Ｃｒ 和灰口铸铁的离子渗氮层的冲蚀性能及破坏机理。讨论了材料的冲蚀与时间、攻角、速度和材料硬度的关系；离子渗氮层的冲蚀破坏机理；材料离子渗氮层呈现微切削和疲劳剥落，有脆性断裂特征，属于应力疲劳断裂；离子渗氮层在冲蚀破坏中可能首先在过渡层产生裂纹。
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| 关 键 词： | 冲蚀 离子渗氮 攻角 |
The study on the plasma nitrided layer in erosion and its mechanism |
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| LIU Ke gao,et al..The study on the plasma nitrided layer in erosion and its mechanism[J].Journal of Shandong Institute of Architecture and Engineering,1999,14(4):75-79. |
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| Authors: | LIU Ke gao |
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| Affiliation: | LIU Ke gao 1 et al. |
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| Abstract: | The erosion damage and its mechanism for 38CrMoAl, 40Cr and grey cast iron treated in plasma nitriding process are studied in this paper. And also, the relationship with time, incidence, velocity and the hardness of materials is discussed. The mechanism of the erosion damage occurred in the plasma nitrided layers is that erosion shows fatigue breaking off, micro cutting and micro cracking which having the characteristics of stress fatigue fracture. The cracks maybe occured firstly in the diffusion layer of the plasma nitrided layer in erosion damage. |
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| Keywords: | erosion plasma nitriding incidence |
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