MoDTP或MoDTC与Ni—P合金镀层的协同效应

研究了二烷基二硫代磷酸钼（简称ＭｏＤＴＰ）和二烷基二硫氨基甲酸钼（ＭｏＤＴＣ）的摩擦学性能。结果表明，油中加ＭｏＤＴＰ与不加添加剂相比，４５钢耐磨性提高４．６８倍，摩擦系数降低５０．２４％。且ＭｏＤＴＰ的减摩性和耐磨性均优于ＭｏＤＴＣ。还考察了Ｎｉ－Ｐ合金镀层的摩擦学性能，发现用基础油润滑时，Ｎｉ－Ｐ合金镀层的耐磨性比４５钢提高６．２倍，但摩擦系数却高出２０．３５％。此外，ＭｏＤＴＰ与Ｎｉ－Ｐ合金

Synergistic Effect of MoDTP or MoDTC with Ni - P Alloy Coating

the tribological properties of molybdenum dithiodialkylphosphate (MoDTP) and molybdenum dithio-dialkylcarbamate (MoDTC) are researched, the oil containing MoDTP compared with the base oil, the antiwear of medium carbon steel can increase by a factor of 4. 68, friction coeffcient decreased by 50.24 % , and MoDTP was superior in reducing both friction and wear to MoDTC. The tribological properties of Ni - P alloy coating are examined. The results show that the antiwear of Ni - P alloy coating is 6. 2 times greater than medium carbide steel, friction coeffcient increased by 20.35% .A good synergistic effect can be attained by MoDTP (or MoDTC) together with Ni - P alloy coating, the double protection function on metal substrate can be attained, e.g. the anti-wear of Ni - P alloy coating ( with MoDTP) is 12. 4 times greater than medium carbide steel ( without additive), the friction coefficient decreased by 51.22% .