| 陈胜,刘洁,刘静,彭小明,赵宇.316L钢的表面渗铬氮化处理及耐磨性能研究[J].装备环境工程,2025,22(4):148-153. CHEN Sheng,LIU Jie,LIU Jing,PENG Xiaoming,ZHAO Yu.Surface Chromizing and Nitriding Treatment of 316L Stainless Steel and Its Wear Resistance[J].Equipment Environmental Engineering,2025,22(4):148-153. |
| 316L钢的表面渗铬氮化处理及耐磨性能研究 |
| Surface Chromizing and Nitriding Treatment of 316L Stainless Steel and Its Wear Resistance |
| 投稿时间：2024-11-12 修订日期：2025-02-27 |
| DOI：10.7643/issn.1672-9242.2025.04.019 |
| 中文关键词: 渗铬 316L钢 真空化学热处理 辉光离子氮化 CrN层 深孔镀膜中图分类号:TG174 文献标志码:A 文章编号:1672-9242(2025)04-0148-06 |
| 英文关键词:chromizing 316L steel vacuum chemical heat treatment glow ion nitriding CrN film deep hole coating |
| 基金项目: |
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| Author | Institution |
| CHEN Sheng | The Fifth Military Representative Office in Chongqing, Chongqing 400060, China |
| LIU Jie | State-run No.296 Factory, Cho ngqing 400000, China |
| LIU Jing | Southwest Institute of Technology and Engineering, Chongqing 400039, China |
| PENG Xiaoming | The Third Military Representative Office in Chongqing, Chongqing 400060, China |
| ZHAO Yu | The Fifth Military Representative Office in Chongqing, Chongqing 400060, China |
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| 中文摘要: |
| 目的 通过优化316L钢表面渗铬氮化层的物理性质，找到解决深孔零件内壁镀膜问题的方案。方法 采用真空化学热处理和辉光离子氮化技术，在基材316L钢上制备渗铬氮化(CrN)层，研究CrN层厚度、金相组织、微观形貌、硬度、耐磨性等物理性能。采用渗铬氮化工艺对深孔零件(孔径比为1︰10)的内壁镀膜，检测零件内孔的微观及宏观特征。结果 通过探究不同的反应温度、时间、氨气流量等条件，确定CrN层制备的最佳工艺。在最优反应条件下，316L钢表面形成厚度93.28 μm的CrN层，该涂层在620 ℃的高温下仍然晶界明显，并未出现“晶间腐蚀”现象。涂层硬度可达1 306HV0.1，摩擦因数为0.15。深孔零件渗铬氮化处理后内孔有较均匀的渗层，厚度为1.47 μm。结论 利用真空化学热处理和辉光离子氮化技术在316L钢表面形成CrN层，有效提高了316L钢的表面硬度和抗磨损性。该渗铬氮化工艺可为轻武器领域，尤其是深孔零件的渗镀工艺提供技术支持。 |
| 英文摘要: |
| The work aims to optimize physical properties of the chromium nitride film on the 316L steel surface to find a solution to the problem of inner wall coating of deep hole workpieces. Vacuum chemical thermal treatment technology and glow ion nitriding technology were used to prepare a chromium nitride (CrN) film on the substrate 316L steel to explore the physical properties such as thickness, metallographic organization, microcosmic morphology, hardness, and wear resistance of the chromium nitride film. The chromizing and nitriding technology was used to coat the inner wall of the deep hole workpieces (pore ratio of 1:10), and detect the micro and macro characteristics of the inner holes of the workpieces. This article determined the best conditions for chromium nitride layer preparation by exploring different reaction conditions, such as temperature, time and ammonia flow. Under the best reaction conditions, a CrN film with a thickness of 93.28 μm was formed on the surface of 316L steel. The grain boundary was still obvious at 620 ℃, and there was no “intergranular corrosion” phenomenon. The hardness of film could reach 1 306HV0.1, and the coefficient of friction was 0.15. After chromizing and nitriding treatment, the inner hole of the deep hole workpieces had a relatively uniform infiltration layer with a thickness of 1.47 μm. The use of vacuum chemical head treatment and glow ion nitriding technology to form a CrN layer on the surface of 316L steel effectively improves the surface hardness and wear resistance of 316L steel. The chromizing and nitriding technology can provide technical support for the coating of small arms, especially for deep hole workpieces. |
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