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首页> 外文期刊>International Journal of Electrochemical Science >Properties of Jet electrodeposition Nickel Coating on TC4 Alloy Prepared by Selective Laser Melting
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Properties of Jet electrodeposition Nickel Coating on TC4 Alloy Prepared by Selective Laser Melting

机译：选择性激光熔炼在TC4合金上喷射电沉积镍涂层的性能

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摘要

In order to solve the problems of poor surface wear resistance and low hardness of titanium alloymaterials formed by selective laser melting (SLM) technology, a new method of preparing brightnickel protective coating by jet electrodeposition was proposed in this paper. The surface morphologyof the coatings was characterized by field emission scanning electron microscopy. The microhardnesstester, scratch tester, and friction and wear tester were used to analyze the adhesion, hardness, andwear resistance of the coatings. The results indicated that the current density has an important effect onthe properties of the coatings; as the current density increases, the surface flatness gradually increasesand then decreases. When the current density is 120 A/dm 2 , the microhardness of the coatings reaches548 HV, and the adhesion strength also reaches 30.4 N. Compared with the surface of titanium alloy,the surface of the coating has better wear resistance, and the surface is more complete after friction andwear test. The wear mechanism is transformed from microscopic grinding to smearing.
机译：为了解决选择性激光熔融（SLM）技术形成的钛合金材料的表面耐磨性差，硬度低的问题，提出了一种新的喷射电沉积制备光亮镍保护层的方法。通过场发射扫描电子显微镜表征了涂层的表面形态。用显微硬度计，划痕测试仪和摩擦磨损测试仪分析涂层的附着力，硬度和耐磨性。结果表明，电流密度对涂层的性能有重要影响。随着电流密度的增加，表面平整度逐渐增大，然后减小。当电流密度为120 A / dm 2时，涂层的显微硬度达到548 HV，粘附强度也达到30.4N。与钛合金表面相比，涂层的表面具有更好的耐磨性，并且表面经过摩擦和磨损测试后更加完整。磨损机理从微观研磨转变为涂抹。

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