热处理对0Cr18Ni9Ti不锈钢耐蚀性的影响  

INFLUENCE OF HEAT TREATMENT ON CORROSION RESISTANCE OF 0Cr18Ni9Ti

作　　者：龚利华[1] 崔景海[2] 张禹[2] 

机构地区：[1]江苏科技大学先进焊接技术省级重点实验室,镇江212003 [2]江苏科技大学材料科学与工程学院,镇江212003

出　　处：《腐蚀科学与防护技术》2008年第1期38-40,共3页Corrosion Science and Protection Technology

摘　　要：用草酸电解实验结合金相观察以及动电位极化法研究了不同热处理工艺后0Cr18Ni9Ti不锈钢的耐晶间腐蚀和耐点蚀性能.结果表明,单一固溶处理后试样具有较好的耐点蚀性,稳定化处理后虽然具有很好的抗晶间腐蚀性能,但是耐点蚀性较差.同时,采用交流阻抗测试研究发现固溶处理后试样表面钝化膜比较稳定.The effect of heat treatment on pitting corrosion and intergranular corrosion of 0Cr18Ni9Ti was studied by oxalic acid electrolyte test combined with metallographie analysis and potentiodynamie polarization measurement. The results showed that solution treatment is helpful for pitting corrosion resistance. The specimens after stabilization treatment showed the best intergranular corrosion resistance, but the pitting corrosion resistance is poor. Meanwhile,the passivating films on the solution treated specimens showed a good stability by alternating current impedance test.

关 键 词：0CR18NI9TI 热处理 点蚀 晶间腐蚀 

分 类 号：TG172.9[金属学及工艺—金属表面处理]