5101 硬質薄膜の窒素ガス潤滑特性に及ぼす初期摩擦履歴の影響(S70-1 卒業研究コンテスト(1),S70 機素潤滑設計部門第12回卒業研究コンテスト)

概要

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To introduce into practice a new technology of N_2 gas lubrication with CN_x, in this paper, the strong effect of pre-sliding to several thin hard coatings by CN_x-coated Si_3N_4 ball on the reduction of friction under N_2 gas lubrication is clearly shown experimentally. By giving pre-sliding of 100-10,000 cycles to TiN coated SUS440C steel disk by CN_x-coated Si_3N_4 ball, friction coefficient of TiN/CN_x under N_2 gas lubrication decreases from 0.4 to 0.02 and wear rate of the ball decreases from the order of 10^<-6> to 10^<-9> mm^3/Nm. It is confirmed the optimum range of pre-sliding cycles exists for low and stable friction and low wear. Moreover, it is clarified that transfer material on TiN coated disk from CN_x coated ball in pre-sliding process accomplished the key role for the low and stable friction and low wear.
社団法人日本機械学会の論文
2006-09-15