Industrial Gear Oils: Influence of Bulk Oil Temperature and Contact Pressure on Tribological Performance and Subsurface Changes
Industrial Gear Oils: Influence of Bulk Oil Temperature and Contact Pressure on Tribological Performance and Subsurface Changes
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DOI：
10.1007/s11249-020-1287-z
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发表时间：
2020-03
影响因子：
3.2
通讯作者：
Aduragbemi Adebogun;R. Hudson;A. Matthews;P. Withers
中科院分区：
文献类型：
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作者：
Aduragbemi Adebogun;R. Hudson;A. Matthews;P. Withers
本研究旨在研究油温和接触压力对三种工业齿轮油的摩擦学性能的影响，同时也对接触金属表面下发生的相应变化进行了研究。结果表明，随着油温和接触压力的升高，表面与添加剂之间的相互作用增强，有利于低摩擦膜的形成。磨损表面的亚表面特征表明，较高的油温和接触压力会促进球化AISI 52100钢的表面硬化、近表面（< 0.8 µm）微观结构完整性的退化，并对应于磨损的增加。这项研究清楚地表明，齿轮油配方和它们形成的摩擦膜独特地影响表面下变形和磨损的程度。
This study was designed to investigate the influence of oil temperature and contact pressure on the tribological performance of three industrial gear oils but also on the corresponding changes taking place beneath the metal surfaces in contact. The result shows that increase in the oil temperature and contact pressure increases surface–additive interaction, promoting the formation of low-friction tribofilms. Subsurface characterisation of the worn surfaces shows that higher oil temperature and contact pressure promotes surface hardening of spheroidised AISI 52100 steel, degradation of the near-surface (< 0.8 µm) microstructural integrity and corresponds to an increase in wear. This study clearly shows that the gear oil formulations and the tribofilms they form uniquely influence the extent of subsurface deformation and wear.