等离子氮化处理改善铁的耐腐蚀性能研究  

Improved corrosion behavior of iron treated by plasma nitriding

在线阅读下载全文

作  者:凌绪玉[1] 王芳宁[1] 

机构地区:[1]西南民族大学电气信息工程学院,四川成都610041

出  处:《西南民族大学学报(自然科学版)》2017年第3期321-325,共5页Journal of Southwest Minzu University(Natural Science Edition)

基  金:中央高校基本科研业务费专项基金(2015NYB04)

摘  要:通过电化学测试方法对等离子氮化处理前后铁的耐腐蚀性进行研究.采用扫描电子显微镜(SEM)对极化试验后样品表面的腐蚀形貌进行观察.结果表明,等离子氮化处理后的样品的蚀孔数量少,其腐蚀程度明显优于未经处理的样品.应用X射线衍射(XRD)及X射线光电子能谱(XPS)分析其腐蚀机理.结果证实,等离子氮化处理后铁的耐腐蚀性能得以改善,归因于材料表面形成的铁氮及铁氧结合层.Electrochemical corrosion tests were performed to study the corrosion resistance of iron before and after plasma nitri- ding. The microstructures and pitting corrosion behavior of samples after polarization were investigated by scanning electron mi- croscope (SEM). The results showed that anti-corrosion performance of surface-modified specimen was obviously improved in so much as its number and extent of pitting decreased as compared with the untreated sample. According to the results of X-ray dif- fraction(XRD) and X-ray photoelectron spectroscopy( XPS), it is concluded that the improved corrosion behavior is ascribed to the new formed phases, of Ferrite nitride as well as Ferrite oxide near the surface, brought about by plasma nitriding.

关 键 词: 等离子氮化处理 耐腐蚀性能 

分 类 号:TG174[金属学及工艺—金属表面处理]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象