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Frictional Heating and Its Influence on the Wear of Steel

机译:摩擦加热及其对钢磨损的影响

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摘要

High frictional temperatures during the dry or imperfectly lubricated rubbing of steel produce gross structural changes and intense hardening of the surface layers. In consequence of these changes the wear time curve shows a marked inflexion, the wear rate of soft steel on soft steel diminishing by more than an order of magnitude as the hardened skin develops. The protective layer establishes itself more readily as the carbon content of the steel increases, a feature explained by the ease with which eutectoid pearlite transforms to austenite, and thence to martensite, during the rapid temperature cycle. By simulating the hot spots during wear by the thermal action of electric sparks, the hardness change is shown to be intensified by nitrogen or carbon absorbed from the atmosphere or lubricant.
机译:在钢的干式或不完全润滑的摩擦过程中,高摩擦温度会导致总体结构变化和表面层强烈硬化。这些变化的结果是,磨损时间曲线显示出明显的弯曲,随着硬化表皮的发展,软钢在软钢上的磨损率降低了一个数量级以上。随着钢中碳含量的增加,保护层更容易建立自身,这是由共析珠光体在快速温度循环过程中容易转变为奥氏体,然后转变为马氏体的容易程度所解释的。通过在电火花的热作用下模拟磨损过程中的热点,硬度变化显示出被大气或润滑剂吸收的氮或碳加剧了。

著录项

  • 来源
    《Journal of Applied Physics》 |1957年第9期|共9页
  • 作者

    Welsh N. C.;

  • 作者单位

    Associated Electrical Industries, Limited, Aldermaston, Berkshire, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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