本文關(guān)鍵詞： Ni-P-TiN 鍍層 熱處理 摩擦系數(shù)　出處：《人工晶體學(xué)報(bào)》2015年11期 　論文類(lèi)型：期刊論文

【摘要】：為改善機(jī)械零件的表面性能,采用超聲波輔助化學(xué)沉積方法,在45鋼基體表面制得Ni-P-TiN納米鍍層,利用透射電鏡、X射線(xiàn)衍射儀、顯微硬度計(jì)、掃描電鏡、摩擦磨損試驗(yàn)機(jī)對(duì)其進(jìn)行微觀組織、機(jī)械性能及摩擦學(xué)性能研究。結(jié)果表明,鍍態(tài)Ni-P-TiN納米鍍層主要由大量Ni和少量TiN組成,鎳晶粒和TiN粒子的平均粒徑分別為95nm和42nm。當(dāng)熱處理溫度達(dá)到300℃時(shí),Ni-P-TiN納米鍍層中出現(xiàn)Ni3P相和NiO相,其顯微硬度高達(dá)951.9Hv,其平均摩擦系數(shù)為0.43。
[Abstract]:In order to improve the surface properties of mechanical parts, Ni-P-TiN nanocrystalline coatings were prepared on 45 steel substrates by ultrasonic assisted chemical deposition. Transmission electron microscopy (TEM) and X-ray diffractometer (TEM) were used for microhardness analysis. The microstructure, mechanical properties and tribological properties of the coatings were studied by SEM and tribological tester. The results showed that the Ni-P-TiN nanocoatings were mainly composed of a large amount of Ni and a small amount of TiN. The average particle sizes of nickel grains and TiN particles were 95 nm and 42 nm respectively. The Ni3P phase and NiO phase appeared in Ni-P-TiN nanocrystalline coatings when the heat treatment temperature reached 300 鈩，

本文編號(hào)：1491274