表面纳米化对低碳钢耐腐蚀性能的影响及机制  

Effect and Mechanism of Surface Nanonization on Corrosion Resistance of Low-Carbon Steel

作　　者：魏江鹏 WEI Jiangpeng(Sinopec Beijing Research Institute of Chemical Industry,Beijing 100029,China)

机构地区：[1]中石化(北京)化工研究院有限公司,北京100029

出　　处：《矿冶工程》2024年第5期179-184,共6页Mining and Metallurgical Engineering

摘　　要：采用表面机械研磨(SMAT)处理低碳钢材料,实现表面纳米化,探讨了表面纳米化对低碳钢耐腐蚀性的影响。结果表明,表面纳米化作用下,碳含量较低的低碳钢材料表面塑性变形较强烈,表面X射线衍射峰宽化较明显;对不同碳含量低碳钢进行表面纳米化处理,碳含量越低,处理后表面粗糙度越大、耐腐蚀性能越差。Surface mechanical attrition treatment(SMAT)was adopted for low-carbon steel materials to achieve surface nanonization,and then the influence of surface nanonization on corrosion resistance of low-carbon steel was also discussed.The results show that due to surface nanonization,the low-carbon steel has a greater plastic deformation on the surface as the carbon content decreases,and the X-ray diffraction of its surface presents obviously wider peaks.It is found that after nanosizing treatment for the surface of low-carbon steel with different carbon content,the lower the carbon content,the rougher the surface and the worse the corrosion resistance.

关 键 词：低碳钢 表面机械研磨 电化学腐蚀 粗糙度 耐腐蚀性能 

分 类 号：TG178[金属学及工艺—金属表面处理]