摘要
以抛丸后的热轧430铁素体不锈钢板为原料,通过酸洗模拟试验,结合腐蚀失重测定、微观形貌分析、极化曲线及交流阻抗谱测试,研究了氧化剂氯酸钾(KCl O3)对铁素体不锈钢盐酸基酸洗过程及板面质量的影响作用规律。试验结果表明:KCl O3可以通过加速阴极反应速率,减小电荷转移电阻,从而明显加速铁素体不锈钢的酸洗进程,但过量加入时易产生点蚀倾向。KCl O3可以作为适用于铁素体不锈钢盐酸基酸洗盐酸工艺的合理氧化剂,其适宜的加入量为1%。
The effect of potassium chlorate（ KCl O3） as oxidants on pickling behaviour in HCl-based electrolyte and the surface quality of original hot-rolled and blasted 430 stainless steel（ 430- SS） were studied,by means of weight-loss tests,microstructure analyses,potentiodynamic polarization curves and electrochemical impedance spectroscopy measurements. The results showed significantly accelerated pickling process for 430- SS happened by adding KCl O3 through enhanced cathodic reaction rate and reduced Rt,with pitting corrosion when excess KCl O3 was added. KCl O3 is a proper oxidant for pickling in HCl-based electrolyte of 430- SS,with reasonable addition of 1%.
出处
《钢铁钒钛》
CAS
北大核心
2015年第4期114-118,共5页
Iron Steel Vanadium Titanium
基金
国家自然科学基金(51374060)
辽宁省科技攻关项目(2012221013)
