新型铸造不锈钢耐硫酸腐蚀性能研究  

Research on Sulphuric Acid Corrosion Resistance of New Cast Stainless Steel

作　　者：闫永旺[1] 范秀风[1] 高占勇[1] 郑福生[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《铸造》2012年第5期478-479,484,共3页Foundry

摘　　要：在生产条件下采用铸造法制备了一种新型的耐硫酸腐蚀不锈钢。利用腐蚀试验研究了温度、硫酸浓度对多元合金化的新型铸造不锈钢腐蚀性能的影响。结果表明,元素的相互作用使合金的钝化能力增强,在50℃、20%的硫酸腐蚀条件下,合金腐蚀率可降低到1 g.m-.2h-1。A new sulphuric acid-resisting stainless steel was prepared through casting process under production conditions.The effects of temperature and concentration of sulfuric acid on corrosion resistance of multiple alloying new cast stainless steel were investigated by corrosion test.The results show that the passivating ability of new cast stainless steel is improved by interaction of alloying elements.At 50 ℃,20% sulfuric acid corrosion conditions,the corrosion rate of the new stainless steel is reduced to 1 g·m-2·h-1.

关 键 词：新型合金 耐高温腐蚀 合金化 

分 类 号：TG172.63[金属学及工艺—金属表面处理]