本文選題：Ni-TiC復(fù)合鍍層 + 微-納米TiC　； 參考：《材料工程》2017年01期

【摘要】：采用雙脈沖復(fù)合電鍍技術(shù),在瓦特型鍍液中,制備含微-納米TiC顆粒的Ni基復(fù)合鍍層。研究鍍液中納米TiC添加量對(duì)復(fù)合鍍層微觀形貌、組織結(jié)構(gòu)、硬度、摩擦和抗氧化性能的影響。結(jié)果表明:鍍液中添加納米TiC后,Ni-TiC復(fù)合鍍層表面出現(xiàn)團(tuán)聚、致密度降低,復(fù)合鍍層的組織為Ni和TiC;隨鍍液中納米TiC添加量的增加,復(fù)合鍍層的顯微硬度呈先增后降的趨勢(shì),而摩擦因數(shù)則先降后升;當(dāng)納米TiC顆粒添加量為6.0g/L時(shí),復(fù)合鍍層顯微硬度最大,為445HV,摩擦因數(shù)較小,為0.22,磨損機(jī)制以磨料磨損為主;在900℃,100h氧化條件下抗氧化性能最佳,氧化增重為6.828mg/cm~2,為微米復(fù)合鍍層的0.5倍。
[Abstract]:Ni-base composite coating containing micro-nano TiC particles was prepared in Watt bath by double pulse composite electroplating.The effects of TiC content on the micromorphology, microstructure, hardness, friction and oxidation resistance of the composite coatings were investigated.The results show that the surface of Ni-TiC composite coating is agglomerated and densified, and the microstructure of the composite coating is Ni and tic, and the microhardness of the composite coating increases first and then decreases with the increase of the content of nano TiC in the bath.When the content of TiC nanoparticles was 6.0g/L, the microhardness of the composite coating was the largest (445HVV), the friction coefficient was 0.22, the wear mechanism was mainly abrasive wear, and the oxidation resistance was the best at 900 鈩，

本文編號(hào)：1737456