摘要
利用扫描电镜和原子力显微镜等方法研究了在偏酸性环境条件下,表面形貌对1Cr11Ni2W2MoV不锈钢耐腐蚀性能的影响。结果表明:1000#砂纸抛光试样的耐腐蚀性能最好,机械磨削试样次之,800#砂纸抛光试样的最差;试样的耐腐蚀性能并不是随着表面粗糙度的降低而增强;这主要是由于1000#砂纸抛光试样具有较高的亚稳态和稳定孔蚀电位,而800#砂纸抛光试样比磨削试样更容易在表面形成腐蚀微电池所引起的。
By means of SEM and AFM,the effects of surface morphology on corrosion resistance of 1Cr11Ni2W2MoV stainless steel in weak acid surrounding have been investigated.It is found that the corrosion resistance of the steel does not increase monotonously with the decrease of surface roughness,and the 1000# polished specimens show the best corrosion resistance,but the 800# polished specimens corrode more than the ground specimens.The main reason may be that the 1000# polished specimens have the highest metastable ...
出处
《机械工程材料》
CAS
CSCD
北大核心
2008年第8期8-11,15,共5页
Materials For Mechanical Engineering
基金
航空科学基金资助项目(03B52011)
国家自然科学基金资助项目(50275073)
关键词
表面形貌
耐腐蚀性能
不锈钢
surface morphology
corrosion resistance
stainless steel
