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为提升316L不锈钢在海水中的耐磨性,采用多弧离子镀在316L不锈钢上沉积CrN和CrSiN涂层。对涂层进行系统地表征,用浸泡试验和极化测试评价涂层的耐腐蚀性能,用球-盘摩擦方式测试涂层在海水环境中的摩擦学性能。结果表明,CrN涂层的衍射峰有很强的(111)和(200)取向,而CrSiN涂层的这两个峰相对较弱。CrSiN涂层的硬度比CrN涂层略高,且CrSiN涂层表现出更优越的耐蚀性。CrSiN在海水中的摩擦因数和磨损率相对CrN涂层均有所降低,表明掺杂元素Si有利于提高涂层在海水环境中的摩擦学性能。这两种涂层可有效提升316L不锈钢在海水中的耐磨性。
In order to enhance the wear resistance of 316L stainless steel in seawater, multi-arc ion plating was used to deposit CrN and CrSiN coatings on 316L stainless steel. The coating was systematically characterized by immersion test and polarization test to evaluate the corrosion resistance of the coating. The tribological properties of the coating in seawater environment were tested by ball-and-disk friction. The results show that the diffraction peaks of CrN coating have a strong (111) and (200) orientation, whereas the two peaks of CrSiN coating are relatively weak. The hardness of CrSiN coating is slightly higher than that of CrN coating, and CrSiN coating shows superior corrosion resistance. The friction coefficient and wear rate of CrSiN in sea water are lower than those of CrN coating, which indicates that doping Si can improve the tribological properties of coatings in seawater environment. Both coatings improve the wear resistance of 316L stainless steel in seawater.