Effect of Ni-P coating process on the microstructure and performance of heat exchanger surface

被引：0
|
作者：
Cheng, Yan-Hai [1 ,2 ]
Zou, Yong [1 ]
Cheng, Lin [1 ]
Liu, Wen [1 ]
机构：
[1] Institute of Thermal Science and Technology, Shandong University, Ji'nan 250061, China
[2] School of Mechanical Engineering, Shandong University, Ji'nan 250061, China
来源：
Gongneng Cailiao/Journal of Functional Materials | 2008年 / 39卷 / 05期
关键词：
Nickel coatings - Microhardness - Nanocrystals - Microstructure - Nickel compounds - Phosphorus compounds;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this study, the coating of electroless nickel-phosphorus prepared in different process was studied by means of TEMA, SEM, micro-hardness tester, and XRD. The results showed that the chemical composition of the coating was mainly depended on the concentration of main salt and the reducing agent. The concentration of complexing agent had no effect on the chemical composition of the Ni-P coating. However, the concentration of complexing agent can change the Surface morphology of the coating and the plating rate and affect the microstructure of the coating. The ratio of nano-phase increased with the increase of the concentration of complexing agent. Furthermore, the micro-hardness was enhanced as the results of increasing the ratio of nano-phase.
引用
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页码：799 / 801
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