超级双相不锈钢电化学腐蚀性能的实验研究  

Experimental Research on Electrochemical Corrosion Property of Super Duplex Stainless Steel

作　　者：陈祺[1] 刘东[2] 

机构地区：[1]福州大学实验室建设与设备管理处,福州350116 [2]福州大学机械工程及自动化学院,福州350116

出　　处：《实验科学与技术》2014年第6期25-26,65,共3页Experiment Science and Technology

摘　　要：利用电化学工作站,对SAF2906超级双相不锈钢的耐点蚀性能、耐晶间腐蚀性能进行了研究。结果表明:SAF2906在3.5 wt Na Cl溶液中,具有比较宽的钝化区,以及较小的腐蚀电流密度(0.147μA·cm-2),耐点蚀性能良好;在2 mol/L H2SO4+1 mol/L HCl介质中,具有较低的再活化率(4.39),其晶间腐蚀敏感性较小,具有良好的耐晶间腐蚀性能。Pitting corrosion resistant and intergranular corrosion resistance of duplex stainless steel were studied by electrochemical workstation. The results indicate that SAF2906 has wide passivation region and lower corrosion current density in 3. 5 wt Na Cl solution（ 0. 147 μA · cm^- 2）. The pitting corrosion resistant performance of materials is excellent. The reactivation rate is low in the 2M H2SO4＋ 1M HCl solution（ 4. 39）,the susceptibility to intergranular corrosion is small,which has good resistance for intergranular corrosion.

关 键 词：SAF2906超级双相不锈钢 电化学技术 耐蚀性能 实验 

分 类 号：TG174.2[金属学及工艺—金属表面处理]