本文選題：干滑動摩擦磨損　切入點：激光熔覆　出處：《熱加工工藝》2015年04期

【摘要】：借助于光學顯微鏡、X射線衍射儀、維氏硬度計、摩擦磨損試驗機等研究了1Cr17Mn6Ni5N不銹鋼表面激光熔覆Ni/Co基合金復合涂層的組織與干滑動摩擦磨損性能。結果表明:涂層材料由含35%WC的Ni基合金(Ni35WC)和一定量的Co基合金粉混合構成。激光熔覆Ni35WC+30%Co基合金復合涂層硬度比單一的Ni基合金熔覆層的提高50~70 HV;復合涂層的干滑動摩擦磨損速率相比不銹鋼基材的下降約51%,相比Ni基合金熔覆層的下降約25%。干滑動摩擦磨損抗力的提高被認為是固溶強化、細晶強化和硬質點化合物產生的彌散硬化共同作用的結果。
[Abstract]:By means of optical microscope X-ray diffractometer, Vickers hardness tester and friction and wear tester, the microstructure and dry sliding friction and wear properties of laser cladding Ni/Co based alloy composite coating on 1Cr17Mn6Ni5N stainless steel were studied.The results show that the coating material is composed of Ni-based alloy containing 35%WC and a certain amount of Co-based alloy powder.The hardness of the laser cladding Ni35WC 30%Co based alloy composite coating is 50 / 70 higher than that of the single Ni base alloy cladding layer, and the dry sliding friction and wear rate of the composite coating is about 51% lower than that of the stainless steel substrate and 25% lower than that of the Ni base alloy cladding layer.The increase of dry sliding friction and wear resistance is considered to be the result of the combination of solution strengthening, fine grain strengthening and dispersion hardening produced by hard spot compounds.
【作者單位】： 溫州大學機電工程學院;南京工業(yè)職業(yè)技術學院文理學院;
【基金】：溫州市激光與光電重大科技專項資助項目(J20120005) 溫州市激光與光電重點科技專項資助項目(J20120010)
【分類號】：TG174.44

【參考文獻】

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本文編號：1717560