| 赵连红,刘成臣,金涛,何卫平,王浩伟.实验室加速腐蚀环境下35Cr2Ni4MoA材料镀硬铬表面腐蚀行为研究[J].装备环境工程,2018,15(8):78-82. ZHAO Lian-hong,LIU Cheng-chen,JIN Tao,HE Wei-ping,WANG Hao-wei.Corrosion Behavior of 35Cr2Ni4MoA Hard Chrome Plating Surface in Accelerated Corrosion Environment in Laboratory[J].Equipment Environmental Engineering,2018,15(8):78-82. |
| 实验室加速腐蚀环境下35Cr2Ni4MoA材料镀硬铬表面腐蚀行为研究 |
| Corrosion Behavior of 35Cr2Ni4MoA Hard Chrome Plating Surface in Accelerated Corrosion Environment in Laboratory |
| 投稿时间：2018-05-04 修订日期：2018-08-25 |
| DOI：10.7643/ issn.1672-9242.2018.08.015 |
| 中文关键词: 35Cr2Ni4MoA 腐蚀环境 点蚀 蚀坑深度 蚀坑面积 |
| 英文关键词:35Cr2Ni4MoA corrosive environment pitting corrosion pit depth pit area |
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| Author | Institution |
| ZHAO Lian-hong | Structure Corrosion Protection and Control of Aviation Science and Technology Key Laboratory, China Special Vehicle Research Institute, Jingmen 448035, China |
| LIU Cheng-chen | Structure Corrosion Protection and Control of Aviation Science and Technology Key Laboratory, China Special Vehicle Research Institute, Jingmen 448035, China |
| JIN Tao | Structure Corrosion Protection and Control of Aviation Science and Technology Key Laboratory, China Special Vehicle Research Institute, Jingmen 448035, China |
| HE Wei-ping | Structure Corrosion Protection and Control of Aviation Science and Technology Key Laboratory, China Special Vehicle Research Institute, Jingmen 448035, China |
| WANG Hao-wei | Structure Corrosion Protection and Control of Aviation Science and Technology Key Laboratory, China Special Vehicle Research Institute, Jingmen 448035, China |
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| 中文摘要: |
| 目的 研究35Cr2Ni4MoA材料镀硬铬表面的腐蚀行为特点。方法 开展35Cr2Ni4MoA材料在实验室湿热环境和盐雾环境的加速腐蚀环境试验，分析腐蚀环境对35Cr2Ni4MoA材料镀硬铬表面腐蚀行为的影响，加速腐蚀试验共8个周期，通过蚀坑深度、蚀坑面积、单面面积腐蚀数量描述材料表面腐蚀情况。结果 35Cr2Ni4MoA在实验室腐蚀环境下蚀坑深度随时间变化满足幂函数关系，蚀坑半径随时间满足线性关系。实验前期单位面积内点蚀数量较多，腐蚀程度轻，在试验中后期点蚀扩展相连，腐蚀面积变大，腐蚀数量减少，腐蚀程度加重。结论 提高35Cr2Ni4MoA材料镀硬铬表面处理质量，减少材料表面处理孔隙，能有效提高35Cr2Ni4MoA材料的腐蚀防护能力。 |
| 英文摘要: |
| Objective To study corrosion behavior of 35Cr2Ni4MoA hard chrome plating surface. Methods Accelerated corrosion test of 35Cr2Ni4MoA material was carried out in laboratory of hot and humid environment and salt spray environment to analyze influences of corrosive environment on surface corrosion of 35Cr2Ni4MoA hard chrome plating surface. Accelerated corrosion test had a total of eight cycles. The surface corrosion of 35Cr2Ni4MoA material was described from depth of corrosion pits, area of corrosion and number of corrosion per unit area. Results The corrosion depth of 35Cr2Ni4MoA satisfied the power function relationship with time in the laboratory corrosion environment. The corrosion radius r of the corrosion pits satisfied the linear relationship with time. Pitting corrosion quantity was more and corrosion degree was light in the early stage of the experiment. Late in the experiment; the pitting corrosion was extended; the corrosion area was enlarged; the amount of corrosion was reduced and Corrosion was increased. Conclusion Improving of quality of materials surface treatment and reducing surface porosity of material can effectively improve corrosion protection of 35Cr2Ni4MoA materials. |
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