摘要
化学镀作为一种表面处理技术,已经广泛地应用于各个领域.通过对P20钢基体进行化学镀镍-磷实验,调整p H值这一可控变量,以获得最适合P20钢的化学镀镍工艺.借助XRD、扫描电镜、显微硬度、结合力、电化学腐蚀等实验方法,对镀层组织结构和性能进行了分析和测试.实验结果表明,在P20钢上成功地实现了化学镀镍,P20钢化学镀镍的最佳p H值为4.2.化学镀Ni-P层组织均匀、致密,组成相的Ni和P的非晶相为主;划痕实验的结果表明,Ni-P镀层与基体间的结合力较强;通过对P20钢和Ni-P镀层在3.5%Na Cl溶液中进行电化学腐蚀对比实验不难得出,经过化学镀处理后,P20钢的耐蚀性得到了提高.
Electroless plating has been widely used in various fields as a surface treatment technology.The controllable variable of p H value was adjusted to obtain the most suitable electroless Ni- P plating process for P20 steel by chemical plating on P20 steel substrate. The microstructure and properties of electroless Ni- P plating were investigated by means of XRD,SEM,microhardness,adhesion,electrochemical corrosion,and the results show that the optimum p H value of electroless plating on P20 steel was 4. 2. The chemical plating layer is homogeneous and dense,and the composition of P and Ni is amorphous. The results show that the adhesion of Ni- P coating and substrate is stronger,and the corrosion resistance of P20 steel has improved by electroless plating on P20 steel and Ni- P coating in 3. 5% Na Cl solution.
出处
《佳木斯大学学报（自然科学版）》
CAS
2016年第2期233-235,共3页
Journal of Jiamusi University：Natural Science Edition
基金
佳木斯大学研究生科技创新项目(LM2015_004)
佳木斯大学科技创新团队(cxtd2013-03)
关键词
化学镀镍-磷
PH值
微观结构
耐蚀性
electroless plating Ni-P coatings
pH value
microstructure
corrosion resistance
