耐硫化氢腐蚀钢在硫化氢介质中的腐蚀行为  

Corrosion Behavior of H_2S Resistant Steel in H_2S Solution

作　　者：董晓明[1,2] 陈业新[1] 张忠铧[2] 

机构地区：[1]上海大学材料科学与工程学院,上海200072 [2]宝山钢铁股份有限公司研究院,上海201900

出　　处：《腐蚀与防护》2016年第10期832-837,共6页Corrosion & Protection

基　　金：国家科技支撑计划(2011BAE25B00)

摘　　要：采用电化学方法、X射线光电子能谱仪和扫描电镜等方法对抗硫化氢腐蚀的套管钢BG110S在含饱和硫化氢的NACE溶液中的腐蚀行为进行了研究。结果表明:耐硫化氢腐蚀钢在25℃含饱和硫化氢的NACE溶液中与硫化氢发生了反应,形成双层结构的腐蚀产物膜,外层是以四方晶系FeS为主的腐蚀产物膜,内层为铬、铜等合金元素硫化物的腐蚀产物膜;腐蚀产物膜能够阻挡基体合金元素与硫化氢发生进一步的腐蚀反应,降低了氢原子渗透量,从而提高了耐硫化氢腐蚀钢的抗硫化氢腐蚀的性能。The corrosion behavior of H_2S resistant casing steel BG110 Sin NACE solution saturated with H_2S was investigated by means of electrochemical methods,X-ray photoelectron spectroscopy（XPS）and scanning electron microscopy（SEM）.The results show that the test steel reacted with hydrogen sulfide in NACE solution saturated with H_2S at 25 ℃,and double layer corrosion films,whose outer layer was mackinawite（FeS）and inner layer was Cr and Mo sulfide,formed on the surface of test steel.The corrosion films could resist further corrosion reaction between the test steel and H_2S,and decreased hydrogen permeation flux,which improved the H_2S resistant property of the test steel.

关 键 词：耐硫化氢腐蚀钢 硫化氢腐蚀 氢渗透 

分 类 号：TG174[金属学及工艺—金属表面处理]