316L不锈钢化学镀NiWP非晶镀层耐蚀性研究.pdfVIP

第五届全国腐蚀大会论文集(2009年9 月14-17日,北京) 316L不锈钢化学镀Ni-W-P非晶镀层耐蚀性研究 1 2 2 郑志军 ，赵可昕 ，高岩 （1 华南理工大学机械与汽车工程学院，中国广州 510640； 2 华南理工大学材料科学与工程学院，中国广州 510640） 摘要：以316L 不锈钢为研究对象，利用适当的前处理及施镀工艺在 316L 不锈钢上获得结合力良好 的化学镀Ni-W-P 非晶镀层。采取以模拟人工汗液为腐蚀介质的浸泡实验和以 5%硫酸溶液为腐蚀介 质的阳极极化实验来分析 Ni-W-P 非晶镀层的耐腐蚀性能。结果发现，在保证镀层厚度在 10um 以上 的情况下，（1）在阳极极化实验中Ni-W-P 非晶镀层的耐蚀性能与 316L 不锈钢基本相当；（2 ）在汗 液浸泡实验中，在前 48 时，Ni-W-P 非晶镀层的抗变色能力也与不锈钢相近，但随着浸泡时间的延 长，Ni-W-P 非晶镀层的抗变色能力较不锈钢差。 关键词：不锈钢 化学镀 Ni-W-P 镀层 耐蚀性能 Investigation on Corrosion Resistance of Electroless Ni-W-P Amorhpous Plating on 316L Stainless Steel 1，2 2 2 Z.J.Zheng , K.X.Zhao , Y. Gao 1 School of Mechanical and automotive Engineering, South China University of Technology, Guangzhou 510641, P. R. China 2 School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, P. R. China Abstract In the study, the 316L stainless steel (SS) was treated as the researched object. The electroless Ni-W-P amorphous plating with well adhesion was obtained by means of proper pretreatment and plating technique process on SS. The marinating experiment in the solution simulating human sweat and the anodic potentiodynamic polarizaing test in 5% H SO solution were used to analyse the corrosion resistance of the 2 4 plating. In the results, under the condition that the thickness of plating is assured thicker than 10 um.,(1) in the anodic potentiodynamic polarizaing test, the corrosion resistance of Ni-W-P amorphous plating is comparative with that of as