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材料工程  2015, Vol. 43 Issue (5): 33-37    DOI: 10.11868/j.issn.1001-4381.2015.05.006
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
氮合金化堆焊硬面合金的耐腐蚀性能研究
杨可, 杨克, 包晔峰
河海大学 机电工程学院, 江苏 常州 213022
Corrosion Resistance of Nitrogen-alloying Hardfacing Alloy
YANG Ke, YANG Ke, BAO Ye-feng
College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, Jiangsu, China
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摘要 在马氏体不锈钢中加入氮合金,并通过铌、钒、钛固氮形成氮合金化堆焊硬面合金,进行了电化学腐蚀和化学侵蚀实验,研究了硬面合金的耐腐蚀性能.结果表明:堆焊硬面合金的氮合金化,抑制了铬的碳化物的析出,有效增强了钝化膜的稳定性,使硬面合金的自腐蚀电位从-345mV提高到-264mV,增强了堆焊硬面合金抗电化学腐蚀性能;氮合金化堆焊硬面合金均匀细小的组织形态,使得在FeCl3溶液中发生点蚀的蚀坑小且分散,提高了硬面合金的耐腐蚀性能.
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杨可
杨克
包晔峰
关键词 氮合金化马氏体不锈钢硬面合金耐腐蚀性能    
Abstract:The nitrogen-alloying hardfacing alloy of martensite stainless steel was made through the addition of nitrogen alloy and the nitrogen-fixing elements of niobium, vanadium and titanium. The corrosion resistance of hardfacing alloy was investigated through electrochemical corrosion and chemical erosion tests. The results show that nitrogen-alloying of hardfacing alloy inhibits the precipitation of chromium carbides and the chemical stability of passivating film is effectively strengthened, the corrosion potential increases from -345mV to -264mV, and thus the electrochemical corrosion resistance of hardfacing alloy is strengthened.Owing to the uniform and fine microstructure of nitrogen-alloying hardfacing alloy, pits are fine and dispersed when pitting corrosion occurs on the hardfacing alloy in the FeCl3 solution, therefore the corrosion resistance of hardfacing alloy is improved by nitrogen alloying.
Key wordsnitrogen-alloying    martensite stainless steel    hardfacing alloy    corrosion resistance
收稿日期: 2014-08-22     
1:  TG442  
基金资助:国家自然科学基金资助项目(51101050);江苏省自然科学基金资助项目(BK20141156);中央高校基本科研业务费专项资金(2013B18114)
通讯作者: 杨可(1983-),男,副教授,博士,主要从事新型焊接材料开发与冶金行为的研究和教学工作,联系地址:江苏省常州市河海大学机电工程学院(213022),yangke_hhuc@126.com     E-mail: yangke_hhuc@126.com
引用本文:   
杨可, 杨克, 包晔峰. 氮合金化堆焊硬面合金的耐腐蚀性能研究[J]. 材料工程, 2015, 43(5): 33-37.
YANG Ke, YANG Ke, BAO Ye-feng. Corrosion Resistance of Nitrogen-alloying Hardfacing Alloy. Journal of Materials Engineering, 2015, 43(5): 33-37.
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http://jme.biam.ac.cn/jme/CN/10.11868/j.issn.1001-4381.2015.05.006      或      http://jme.biam.ac.cn/jme/CN/Y2015/V43/I5/33
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