Page 50 - 《摩擦学学报》2021年第2期

第 2 期 丰晓春, 等: 添加Ag 2 Nb 4 O 11 的NiAl基复合材料的高温摩擦学性能及高温润滑机理研究 195

的Ag Nb O 和立方钙钛矿结构的AgNbO 均具有良 adaptive nitride-based coatings for high temperature tribological
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好的润滑性能，根据Erdemir [38-39] 提出的晶体化学理 applications[J]. Surface & Coatings technology, 2009, 204(6):
962–968. doi: 10.1016/j.surfcoat.2009.04.010.
论，即具有高离子势ψ=Z/r(Z 是阳离子电荷，r 是阳离
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子半径)的氧化物可能具有良好的高温润滑性能，可
lubricating materials at high temperatures[J]. International Materials
推断Nb O (φ= 7.14)和Al O (φ= 6)这两种氧化物都具 Reviews, 2018, 63(5): 309–340. doi: 10.1080/09506608.2017.
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有良好的润滑作用；另一方面复合材料磨损表面高温 1410944.
润滑层和对偶表面转移膜的同时存在阻隔了对偶球 [ 6 ] Meng Y G, Xu J, Jin Z M, et al. A review of recent advances in
和复合材料的直接接触，可以有效地抑制磨损进程. tribology[J]. Friction, 2020, 8(2): 221–300. doi: 10.1007/s40544-
综上，由多种润滑剂组成的润滑膜和转移膜的形成有 020-0367-2.
[ 7 ] Bogdanski M S, Sliney H E, DellaCorte C. The effect of processing
效地降低了复合材料的摩擦系数和磨损率.

and compositional changes on the tribology of PM212 in air[J].
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a. 采用高温固相反应法合成了由直径约为100~ [ 8 ] Miyoshi K. Solid lubricants and coatings for extreme environments:
500 nm球形颗粒紧密堆积而成纯的Ag Nb O 粉体. state-of-the-art survey[J]. NASA/TM-2007-21668.
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通过粉末冶金的方法制备了添加Ag Nb O 的NiAl基 [ 9 ] Zabinski J, Sanders J, Nainaparampil J, et al. Lubrication using a
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复合材料. 铌酸银(Ag Nb O )的添加使得复合材料的 microstructurally engineered oxide: performance and
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密 度 略 有 增 加 ， 而 Ag Nb O 的 添 加 显 著 改 善 了 mechanisms[J]. Tribology Letters, 2000, 8(2-3): 103–116. doi:
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10.1023/a: 1019187202237.
NiAl基复合材料的显微硬度，较NiAl金属间化合物提
[10] Tyagi R, Xiong D, Li J. Effect of load and sliding speed on friction
高了11%.
and wear behavior of silver/h-BN containing Ni-base P/M
b. 在较低温度下(200 ℃及以下)，NABO20(NiAl-
composites[J]. Wear, 2011, 270(7-8): 423–430. doi: 10.1016/j.wear.
20%Ag Nb O )复合材料的耐磨性略差，而在高温下 2010.08.013.
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(200 ℃以上)，NABO20复合材料具有优异的耐磨损性 [11] Guo H J, Lu C, Zhang Z Y, et al. Comparison of microstructures and
能. 特别是在400 ℃和800 ℃时，其磨损率分别为6.46×10 −5 properties of VN and VN/Ag nanocomposite films fabricated by
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和1.53×10 mm /(N·m), 较NAB20(NiAl-20%AgNbO ) pulsed laser deposition[J]. Applied Physics, 2018, A124(10):
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694.691–694.698. doi: 10.1007/s00339-018-2055-x.
降低了65%和56%.
[12] Berger L M, Stahr C, Saaro S, et al. Dry sliding up to 7.5 m/s and
c. 在800 ℃摩擦条件下，NABO20复合材料磨痕
800 ℃ of thermally sprayed coatings of the TiO 2 –Cr 2 O 3 system and
表面形成光滑完整的润滑膜，相应Al O 对偶球的表 (Ti, Mo)(C, N) –Ni (Co)[J]. Wear, 2009, 267(5-8): 954–964. doi:
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面也形成了转移膜，两层膜的存在阻隔了对偶球和复 10.1016/j.wear.2008.12.105.
合材料的直接接触，从而有效降低摩擦系数和磨损率. [13] Fateh N, Fontalvo G, Gassner G, et al. The beneficial effect of high-
润滑膜和转移膜均由Nb O 、Al O ﹑AgNbO 、Ag Nb O 11 temperature oxidation on the tribological behaviour of V and VN
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和AgNb O 组成的. coatings[J]. Tribology Letters, 2007, 28(1): 1–7. doi: 10.1007/
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