循环水温度对10^#碳钢和316L不锈钢电化学行为的影响  

Electrochemical behavior of 316L stainless steel and 10# carbonsteel in circulating water with different temperature

作　　者：周天茹 李晓红[1] 陈磊磊[1] 赵飞[1] ZHOU Tianru LI Xiaohong CHEN Leilei ZHAO Fei(School of Mechanical Engineering, Qinghai University, Xining 810016 , China)

机构地区：[1]青海大学机械工程学院,青海西宁810016

出　　处：《青海大学学报（自然科学版）》2016年第5期86-89,96,共5页Journal of Qinghai University(Natural Science)

基　　金：中国电力投资集团公司科研项目(2014-005-HHS-KJ-X)

摘　　要：为了明确循环水温度对不同材质的换热设备的缓蚀影响,利用电化学腐蚀测量方法,研究加入阻垢缓蚀剂的循环水在不同温度下对10#碳钢和316L不锈钢的电化学腐蚀行为,测定极化曲线。结果表明:随着循环水温度的升高,阻垢缓蚀剂对10#碳钢和316L不锈钢的最佳缓蚀温度不同。当循环水温度为40℃时,对316L不锈钢的缓蚀作用最好;对10#碳钢的缓蚀作用是随着温度的升高而逐渐增强;当循环水温度为60℃时,对10#碳钢的缓蚀效果最好,316L不锈钢的耐腐蚀性要优于10#碳钢。由于10#碳钢和316L不锈钢有着不同的电化学腐蚀机理,因此导致了两种材质在循环水中最佳的缓蚀温度也是不同的。In order to define the circulating water temperature on the corrosion of different materialsin heat transfer equipment, the electrochemical corrosion behavior of 316L stainless steel and 10#carbon steel in different temperature of circulating water with corrosion inhibitor were studied usingthe electrochemical corrosion measurement. The polarization curve were draw. Results indicate thatwhen the temperature increases, 316L stainless steel and 10# carbon steel have different the optimumtemperatures of corrosion inhibition. When circulating cooling water is at 40 ℃ , the corrosion inhibitorhas the best corrosion inhibition for 316L stainless steel. The corrosion inhibition effect of 10#steel rises with the temperature gradually, and the optimal temperature is 60℃. The 316Lrs corrosionresistance is better than that of 10# steel at 60 ℃. Since the 10# steel and 316L stainless steelhas a different mechanism of electrochemical corrosion, thus resulting in the corrosion optimum temperatureof two materials in the circulating water is different.

关 键 词：316L不锈钢 10^#碳钢 极化曲线 温度 

分 类 号：TQ085.412[化学工程]