摘要
采用机械研磨方法使工业纯钛表面形成一层均匀的细晶强化层,然后在细晶强化层处进行低温等离子渗镍。使用X射线衍射(XRD),X射线光电子能谱(XPS)方法研究镍基涂层的成分与物相,采用扫描电镜(SEM)方法分析镍基涂层的表面形貌,利用极化曲线方法探讨镍基涂层的抗腐蚀性能。结果表明,工业纯钛的表层钝化膜成分为Ti O2,而低温渗镍工业纯钛的表层钝化膜成分为Ti O2、Ni O、Ni2O3和Ni(OH)2,该层钝化膜能够有效提升纯钛的抗腐蚀性能。
A fine grain strengthening layer was prepared by surface mechanical attrition treatment(SMAT) on commercial pure titanium,then low-temperature plasma nickelizing at the fine grain strengthening layer was carried on.The composition,phase components and microstructure of the modified layer were characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS) and scanning electron microscopy(SEM).The result shows that the surface passive film of the commercial pure titanium is Ti O2,while the surface passive film of the commercial pure titanium after SMAT and nickelizing consists of Ti O2,Ni O,Ni2O3,and Ni(OH)2,which can effectively improve the corrosion resistance of the pure titanium.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2016年第6期182-186,共5页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金(51301144)
关键词
机械研磨
低温渗镍
腐蚀抗性
表面处理
surface mechanical attrition treatment
low-temperature plasma nickeling
corrosion resistance
surface treatment
作者简介
许哲峰(1976-),男,主要从事金属材料腐蚀与防护、涂镀层产品表面处理研究,E—mail:xuzhefeng@126.com。
通信作者:于晓华(1986-),男,从事材料热力学、表面工程、废弃物资源化研究,发表论文40余篇,电话:15987179260,E-mail:xiaohua_y@163.com。