10611 イオン液体潤滑における腐食摩耗現象について(潤滑,一般講演)

概要

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Because of its high-thermal stability, oxidation stability and low volatility, ionic liquid is expected as lubricant at high temperature. On the other hand, there is concern about corrosive wear caused by decomposition of ionic liquid. The ionic liquid N-Methyl-N-propylpiperidinium-bis(trifluoromethanesolfonyl)imide was evaluated for lubricating property of steel/steel contact at high-temperature. The friction and wear properties were investigated by using the SRV oscillating friction and wear tester. The worn surfaces were observed with an optical microscope. A good tribological performance was shown up to 150℃. After the experiments, corrosion was confirmed on the worn surface in all test specimens, and the corrosion scar was increased as the time went on. It is considered that hydrogen fluoride, which was formed by decomposition of anion, caused the corrosive damage.
2009-03-05