In situ pressure measurements in dimpled elastohydrodynamic sliding contacts by Raman microspectroscopy

Kazuyuki Yagi, Philippe Vergne, Tsunamitsu Nakahara

    研究成果: ジャーナルへの寄稿学術誌査読

    22 被引用数 (Scopus)

    抄録

    In situ pressure measurements within dimples formed in glass-steel point contacts under various sliding conditions were performed using Raman microspectroscopy. Experiments were conducted using a ball-on-disc type apparatus in which a circular contact is formed between a rotating glass disc and a rotating steel ball. Film thickness distributions were measured by duochromatic optical interferometry. Polyphenyl ether oil (5P4E) which has a high pressure-viscosity coefficient was used to produce a dimple in the contact area. Experimental results show that the pressure increases locally in the dimple zone and the pressure profile changes, accompanying the changes of the dimple location as a function of the slide-to-roll ratio. The maximum pressure is located downstream the maximum height of the dimple. The rheological response of the oil film under dimple occurrence conditions is discussed.

    本文言語英語
    ページ(範囲)724-730
    ページ数7
    ジャーナルTribology International
    42
    5
    DOI
    出版ステータス出版済み - 5月 2009

    !!!All Science Journal Classification (ASJC) codes

    • 材料力学
    • 機械工学
    • 表面および界面
    • 表面、皮膜および薄膜

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