超细SiC粉体对304不锈钢抗Cl~-腐蚀性能影响
|
摘要
介绍了研究超细Si C粉体对304不锈钢抗Cl-腐蚀性能影响的背景。详细阐述了整个试验过程,在生产条件下采用冲入法,将改性超细Si C粉体加入到304不锈钢中,对添加Si C粉体前后的304不锈钢试样采用金相检验、静态浸泡试验和电化学分析的方法,讨论了Si C粉体对不锈钢的组织和抗Cl-腐蚀性能的影响。结果表明:经改性Si C粉体强化处理后的304不锈钢组织得到细化;抗Cl-腐蚀性提高;添加Si C粉体的304不锈钢自腐蚀电流密度从原不锈钢的1.535μA/cm2降为0.588μA/cm2。
The background of research on the effect of ultra-fine Si C powder on Cl--corrosion-resistance of 304 stainless steel at home and abroad was introduced. The whole experiment process was described in detail:melting in medium frequency furnace;adding the ultra-fine Si C powder into the 304 stainless steel by using pour-over process;investigating the effect of Si C powder on the structure and Cl--corrosion resistance of the specimens before and after adding Si C powder by using metallographic examination,static soaking and electro-chemical analysis to conduct examination. The result showed that the structure of the 304 stainless steel which was intensified with the modified Si C powder became finer,its corrosion resistance increased;the self-corrosion current density of 304 stainless steel with addition of ultra-fine Si C powder reduced from 1.535μA/cm2 of original stainless steel to 0.588 μA/cm2.
The background of research on the effect of ultra-fine Si C powder on Cl--corrosion-resistance of 304 stainless steel at home and abroad was introduced. The whole experiment process was described in detail:melting in medium frequency furnace;adding the ultra-fine Si C powder into the 304 stainless steel by using pour-over process;investigating the effect of Si C powder on the structure and Cl--corrosion resistance of the specimens before and after adding Si C powder by using metallographic examination,static soaking and electro-chemical analysis to conduct examination. The result showed that the structure of the 304 stainless steel which was intensified with the modified Si C powder became finer,its corrosion resistance increased;the self-corrosion current density of 304 stainless steel with addition of ultra-fine Si C powder reduced from 1.535μA/cm2 of original stainless steel to 0.588 μA/cm2.
引文
[1]张述林,李敏娇.18-8奥氏体不锈钢的晶间腐蚀[J].中国腐蚀与防护学报,2007,27(02):124-128.
[2]肖纪美.不锈钢的金属学问题[M].北京:冶金工业出版社,2006:197-204.
[3]约翰A,赛德赖克斯.不锈钢的腐蚀[M].北京:机械工业出版社,1986:94-95.
[4]杨军,高宏,翟玉春.用改性纳米Si C粉体强化灰铸铁性能的研究[J].现代铸铁,2009,(03):28-30.
[5]刘君武,丁厚福,郑治祥.Si Cp/Fe复合材料断口分析[J].理化检验·物理分册,2003,39(04):184-187.
[6]马艳红,黄元伟.高硅对奥氏体不锈钢耐蚀性能的影响[J].材料保护,2000,33(05):7-8.
[2]肖纪美.不锈钢的金属学问题[M].北京:冶金工业出版社,2006:197-204.
[3]约翰A,赛德赖克斯.不锈钢的腐蚀[M].北京:机械工业出版社,1986:94-95.
[4]杨军,高宏,翟玉春.用改性纳米Si C粉体强化灰铸铁性能的研究[J].现代铸铁,2009,(03):28-30.
[5]刘君武,丁厚福,郑治祥.Si Cp/Fe复合材料断口分析[J].理化检验·物理分册,2003,39(04):184-187.
[6]马艳红,黄元伟.高硅对奥氏体不锈钢耐蚀性能的影响[J].材料保护,2000,33(05):7-8.