Effect of Heat Treatment on Chemical Plating of Ni-Cr-P on 65Mn Alloy Steel

IF 0.5 Q4 COMPUTER SCIENCE, INFORMATION SYSTEMS International Journal of Information Retrieval Research Pub Date : 2024-07-26 DOI:10.4018/ijirr.349925

Shunqi Mei, Jinyu Yang, Bin Xu, Jia Chen, Cong Zhou

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Abstract

The chemical plating of Ni-Cr-P significantly affects the improvement of the structure and characteristics of the metal surface. This study aimed to investigate the impact of various plating solution components and process parameters on the deposition rate and surface hardness of Ni-Cr-P coatings on 65Mn alloy steel. Additionally, the study examined the changes in coating properties resulting from different heat treatment temperatures. The specimens coated with Ni-Cr-P underwent heat treatment at temperatures of 180°C, 200°C, 220°C, and 240°C, respectively. The testing results indicate that the plating layer achieves its highest level of performance when subjected to a heat treatment temperature of 200°C. The heat-treated coating exhibits superior wear and corrosion resistance compared to the 65Mn steel substrate. Additionally, the coefficient of friction decreases from 0.5 to 0.4. The self-corrosion potential shifts positively from -569 mV to -389 mV, and the corrosion current decreases from 61.4 μA to 14.48 μA. Furthermore, the impedance improves from 234 Ω·cm2 to 3512 Ω·cm2.

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热处理对 65Mn 合金钢化学镀 Ni-Cr-P 的影响

Ni-Cr-P 化学镀对金属表面结构和特性的改善有显著影响。本研究旨在探讨各种镀液成分和工艺参数对 65Mn 合金钢上 Ni-Cr-P 镀层的沉积速率和表面硬度的影响。此外，该研究还考察了不同热处理温度下涂层性能的变化。镀有 Ni-Cr-P 的试样分别在 180°C、200°C、220°C 和 240°C 的温度下进行了热处理。测试结果表明，当热处理温度为 200°C 时，镀层的性能达到最高水平。与 65Mn 钢基体相比，经过热处理的镀层具有更出色的耐磨性和耐腐蚀性。此外，摩擦系数从 0.5 降至 0.4。自腐蚀电位从 -569 mV 正向移动到 -389 mV，腐蚀电流从 61.4 μA 减小到 14.48 μA。此外，阻抗从 234 Ω-cm2 提高到 3512 Ω-cm2。

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International Journal of Information Retrieval Research COMPUTER SCIENCE, INFORMATION SYSTEMS-

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