Multi-arc ion plating technology was used to prepare CrN composite anti-friction coating on the surface of vermicular graphite cast iron. The results show that as the Cr target current increases, the surface grains gradually become larger and less uniform，At different Cr target currents, the phases of the CrN coating are Cr, CrN and Cr₂N. The critical load of the coating and matrix is 49.2 N. When the Cr target current is 65 A, the nano-hardness is maximum,18.84 GPa, the Young's modulus is 255.41 GPa.The CrN coating can reduce the friction coefficient of the vermicular graphite cast iron from 0.62 to 0.48,improving the wear-resistance behavior.

中文翻译：

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阀座材料表面多弧离子镀CrN涂层的组织与性能

采用多弧离子镀技术在蠕墨铸铁表面制备CrN复合减摩涂层。结果表明，随着Cr靶电流的增加，表面晶粒逐渐变大且不均匀，在不同的Cr靶电流下，CrN涂层的相为Cr、CrN和Cr ₂ N。涂层和基体的临界载荷为49.2  N。当Cr靶电流为65  A时，纳米硬度最大，18.84  GPa，杨氏模量255.41  GPa。CrN涂层可将蠕墨铸铁的摩擦系数从0.62降低到0.48，提高耐磨性能。