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Abstract: The RCF performances of the steel-to-steel pairs lubricated
by two-phase liquid lubricants with additives of nano-grade powders of
diamond are studied. The experimental results show that compared with
the base oil of N15, the two-phase lubricant with nano-diamond does
increase the RCF life, and the more nano-diamond is used, the higher RCF
life is increased. When the content of nano-diamond is 0.3% percentage
by weight, L10 life is increased only 3.62 times, but when it is 3.0%,
the times is 13.85. The anti-fatigue behaviour of nano-diamond particles
in the lubricants is investigated by analyses of physical and
tribological properties of and physical chemistry properties of
lubricant, namely, rolling of nano-diamond particles on the surface and
increasing viscosity of the lubricant.
Key words: Nano-diamond particles Contact fatigue life Two-phase
liquid lubricants
CLC No: TH117
黑龙江省自然科学基金(E01-06)和中科院兰州化物所固体润滑开放实验室基金(0303)资助项目.
Received 20030904, received in revised form 20040409
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