不锈钢化学镀Ni-P合金在H2SO4溶液中的腐蚀行为  

CORROSION BEHAVIOR OF Ni-P COATING ON STAINLESS STEEL IN H_2SO_4 SOLUTION

作　　者：郝龙[1] 程庆[2] 黄文全[3] 朱厚菲[1] 林安[1] 甘复兴[1] 

机构地区：[1]武汉大学资源与环境科学学院环境工程系,武汉430079 [2]淮南师范学院计算机与信息工程系,淮南232001 [3]安徽工贸职业技术学院,淮南232001

出　　处：《中国腐蚀与防护学报》2009年第1期55-58,共4页Journal of Chinese Society For Corrosion and Protection

摘　　要：利用化学镀方法在1Cr18NiTi不锈钢表面制备了均匀、致密和无表面缺陷的Ni-P合金镀层。X射线衍射分析表明,镀层为非晶态结构;动电位极化曲线测试表明,镀层的自腐蚀电位接近-0.1 V(vs.SCE),较不锈钢的自腐蚀电位(-0.31 V)提高了将近0.2 V;腐蚀速率测定结果表明镀层耐蚀性能优异,对基体不锈钢有很好的防护效果。A nickel-phosphor coating was prepared on the surface of 1Cr18Ni9Ti stainless steel by electroless plating. The coating was so uniform and dense that it had no surface defects. The structure of the coating was amorphous in nature checked by X-ray diffraction. By dynamic potential polarization test, it was shown that the free corrosion potential of the coating approached -0.1 V（vs. SCE） and it nearly 0.2V larger than that of stainless steel （-0.31 V）, and it had much better anti-corrosion ability than stainless steel and can protect the substrate effectively.

关 键 词：不锈钢 化学镀 Ni—P合金 非晶态 耐蚀性 

分 类 号：TG146[一般工业技术—材料科学与工程]