摘要
对低碳钢表面进行等离子铬镍共渗,在4Cr13不锈钢表面沉积氮化钛薄膜。对两种强化层及其基体进行电化学腐蚀性能测试。.结果表明:在1 mol/L的H2SO4溶液中,铬镍共渗试样的耐腐蚀程度和氮化钛薄膜的相当,是4Cr13不锈钢试样的90倍,是低碳钢试样的120倍;在1 mol/L的NaOH溶液中,铬镍共渗试样的耐腐蚀性是4Cr13不锈钢试样的0.67倍,是低碳钢试样4.67倍,是氮化钛薄膜的3.67倍;在3.5%的NaCl溶液中,铬镍共渗试样的耐腐蚀性是低碳钢试样的2.3倍,是氮化钛薄膜的0.167倍,是4Cr13不锈钢试样的0.33倍。
The mild steel was carried through the strengthening treatment with plasma Cr-Ni metalizing,and 4Cr13 stainless steel was carried through the strengthening treatment with ion plating TiN.Polarization curves of the two strengthened layers and their matrix were measured by electrochemical measuring instrument.The results show that in 1 mol/L H2SO4 solution,corrosion resistance of plasma Cr-Ni alloyed layer is similar to that of TiN film,which is increased by 90 times comparing with that of 4Cr13 stainless steel,120 times comparing with that of mild steel.In 1 mol/L NaOH solution,corrosion resistance of plasma Cr-Ni alloyed layer is 0.67 times than that of 4Cr13 stainless steel,4.67 times as that of mild steel,3.67 times as that of TiN film.In 3.5% NaCl solution,corrosion resistance of plasma Cr-Ni alloyed layer is 2.3 times than that of mild steel,0.167 times as that of TiN film,0.33 times as that of 4Cr13 stainless steel.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2013年第S1期129-134,共6页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金资助项目(51264007)
国家自然科学基金青年基金(51201043)
广西自然科学基金重点项目(2010GXNSFD013008)
广西科学研究与技术开发科技攻关计划项目(桂科攻12118020-2-2-1)
广西信息材料重点实验室项目(桂科能1210908-10-Z)
关键词
铬镍共渗
氮化钛薄膜
不锈钢
点蚀
腐蚀
plasma Nickel-chromium metalizing
TiN film
stainless steel
pitting
corrosion