提高不锈钢耐高温氧化变色性能的研究  

Study on prevention of stainless steel coloring at high-temperature

作　　者：张波[1] 袁龙[1] 

机构地区：[1]宁波宝新不锈钢有限公司,浙江宁波315807

出　　处：《世界钢铁》2010年第5期30-32,共3页World Iron & Steel

摘　　要：为了抑制不锈钢高温氧化变色,从氧化膜的光干涉作用出发,试验研究了其产生机理及影响因素。结果表明,不锈钢变色的根本原因是其表面的氧化膜厚度发生了变化。增加铬、硅元素含量以及控制带钢表面粗糙度在0.022μm以下,都能有效抑制不锈钢高温变色程度。而将酸液浓度在一定范围内进行调整,则未起到改善作用。In order to inhibit the stainless steel coloring phenomenon at high temperature,experimental study was carried out to reveal the mechanism and influencing factors of that phenomenon.It is found out that the root cause of stainless steel coloring is the change in the passive film thickness.The degree of stainless steel coloring at high temperature can be effectively restrained by increasing Cr and Si content and controlling the Ra value of strip surface roughness to below 0.022 μm,while the adjustment of acid concentration within a certain range is ineffective in suppressing that coloring phenomenon.

关 键 词：不锈钢 变色 色膜厚度 

分 类 号：TG172.82[金属学及工艺—金属表面处理]