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首页> 外文会议>第九届真空冶金与表面工程学术会议 >Effect of Processing Parameters on Microstructure and Properties of Steel-based Chromium Plating
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Effect of Processing Parameters on Microstructure and Properties of Steel-based Chromium Plating

机译：工艺参数对钢基镀铬组织和性能的影响

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摘要

To solve the problem about the surface corrosion and wear of steel parts in the transmission system of helicopter, based on chromium plating technology of plating process ,the chromium plating samples were prepared with three better groups of temperature and current density by means of different formula of chromium plating bath. The X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to study the microstructure and composition of specimen coating. The experimental results show that the crystalline structure of chromium layer is body centered cubic and the crystal is stable, the performances from different specimens including rigidity, thickness, corrosion resistance, antifriction and hydrogen brittleness were tested, the effect of hard chromium plating technology parameter (T,I) on microstructure and properties of steel-based chromium plating was also investigated. The result indicates that: 45～50A/dm2 current density and 58～60℃ temperature of plating coat are optimal condition for obtaining higher brightness, rigidity and thickness, lower porosity, better corrosion resistance and antifriction.
机译：为了解决直升飞机传动系统中钢件表面腐蚀和磨损的问题，基于镀铬工艺，采用不同的化学公式分别制备了具有较好温度和电流密度三组的镀铬样品。镀铬浴。利用X射线衍射（XRD）和扫描电子显微镜（SEM）研究了标本涂层的微观结构和组成。实验结果表明，铬层的晶体结构为体心立方且晶体稳定，测试了不同试样的刚度，厚度，耐蚀性，抗磨性和氢脆性，并测试了硬铬镀工艺参数的影响（ T，I）对钢基镀铬的组织和性能也进行了研究。结果表明：45〜50A / dm2的电流密度和58〜60℃的镀层温度是获得更高的亮度，刚度和厚度，更低的孔隙率，更好的耐腐蚀性和耐磨性的最佳条件。

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