(1. 北京有色金屬研究總院 國(guó)家有色金屬及電子材料分析測(cè)試中心，北京 100088；
2. 中國(guó)科學(xué)院 微電子研究所，北京 100029)
摘 要: 為提高Fe-Ni基涂層的高溫性能，在Fe-Ni基合金, 粉末中添加La2O3和Ce2O3的混合物，對(duì)涂層的高溫氧化行為和高溫耐磨損性能進(jìn)行研究。結(jié)果表明：稀土改性Fe-Ni基涂層組織細(xì)密、晶粒細(xì)小、形成稀土化合物L(fēng)aNi4Si、Ce2Ni22C3以及硬質(zhì)相Cr3Si；稀土改性Fe-Ni基涂層具有良好的高溫抗氧化性能，在氧化初期，涂層質(zhì)量迅速增加，氧化動(dòng)力學(xué)曲線符合拋物線規(guī)律，在氧化后期，氧化動(dòng)力學(xué)曲線符合直線規(guī)律，質(zhì)量增加緩慢。高溫抗氧化性能的提高和Cr3Si硬質(zhì)相的彌散分布使涂層的高溫耐磨性能得到顯著的提高。
關(guān)鍵字: Fe-Ni基涂層；稀土；高溫氧化；高溫磨損
（1. National Center of Analysis and Testing for Non-ferrous Metals and Electronic Material,
General Research Institute for Nonferrous Metals, Beijing 100088, China;
2. Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China）
Abstract:The La2O3 and Ce2O3 oxides were doped into the Fe-Ni based alloy powder in order to improve the high-temperature properties of Fe-Ni based coating, and the high-temperature oxidation behavior and high-temperature wear-resistant property of the Fe-Ni based coating were also studied. The results show that the microstructure is fine and the RE compounds LaNi4Si, Ce2Ni22C3 and hard phase Cr3Si form in the coating. The coating has good high-temperature oxidation-resistant performance. At the initial stage of the oxidation test, the oxidation kinetics line basically follows the parabolic rate law and the mass gain is rapid. At the later period, the oxidation kinetics line becomes straight line and the mass gain is slow. Both the increase of high-temperature oxidation resistant property and the dispersion distribution of the hard phase Cr3Si improve the high-temperature wear-resistant performance of the Fe-Ni based coating remarkably.
Key words: Fe-Ni based coating; rare earth; high-temperature oxidation; high-temperature wear
