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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>Transport Research International Documentation (TRID)</title>
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      <title>WEAR OF RAIL AND TYRE STEELS UNDER ROLLING/SLIDING CONDITIONS</title>
      <link>https://trid.trb.org/View/180786</link>
      <description><![CDATA[Prediction of wear rate of rails on curve is becoming increasingly important as maintenance costs rise. One method is to relate wear behaviour to contact forces and creepages which can be evaluated using existing theoretical analyses of wheel/rail contact.]]></description>
      <pubDate>Sat, 30 Oct 1982 00:00:00 GMT</pubDate>
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      <title>WEAR OF STEEL IN COMBINED ROLLING AND SLIDING</title>
      <link>https://trid.trb.org/View/180787</link>
      <description><![CDATA[An experimental laboratory investigation of the wear of railway rail and car wheel materials has shown that increasing the hardness of rails will reduce rail wear but will increase wheel wear.]]></description>
      <pubDate>Sat, 30 Oct 1982 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/180787</guid>
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      <title>RELATION BETWEEN FOAMING AND SURFACE PROPERTIES OF DETERGENT-CONTAINING LUBRICATING OIL</title>
      <link>https://trid.trb.org/View/86001</link>
      <description><![CDATA[The effect of water concentration on the foaming tendency of lubricating oil containing the detergent additives calcium phenate and amide was investigated from a surface chemical standpoint.  Foam volume, dynamic surface tension and surface viscosity were measured at various water concentrations.  It was proved that the increase of surface viscosity with water content was the main factor affecting foaming in the case of calcium phenate but, in contrast, the Marangoni effect played an essential role in the case of amide.]]></description>
      <pubDate>Sat, 26 May 1979 00:00:00 GMT</pubDate>
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      <title>CRACK GROWTH RATE. ITS MEASUREMENT AND A CONTROLLING FACTOR IN ROLLING CONTACT FATIGUE</title>
      <link>https://trid.trb.org/View/37236</link>
      <description><![CDATA[An optical method has been developed for measuring the extent of cracking in test specimens which have failed by fatigue under rolling contact conditions.  The data from these measurements are expressed in terms of the overall crack growth rate, and it is found that an excellent correlation exists between fatigue life and the rate at which cracks branch and propagate.  The correlation appears to be independent of stress, lubricant chemistry, and probably metallurgy; this shows that crack branching rate controls fatigue life.  The results do show that lubricant chemical factors affect fatigue life through the crack branching rate.]]></description>
      <pubDate>Fri, 14 May 1976 00:00:00 GMT</pubDate>
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      <title>EFFECT OF SEAWATER ON THE FATIGUE LIFE AND FAILURE DISTRIBUTION OF FLOOD-LUBRICATED ANGULAR CONTACT BALL BEARINGS</title>
      <link>https://trid.trb.org/View/11446</link>
      <description><![CDATA[Reductions in rolling contact fatigue life as high as 80% were observed during flood-lubricated angular-contact ball bearing studies when 1% by volume of seawater was added to various lubricants as a contaminant.  The lubricants investigated were of different chemical and physical classes and included mineral oils, triaryl phosphate, and two recently developed mineral-oil-base seawater-emulsifying hydraulic fluids of different viscosities.  A shift in failure distribution, from ball failures to inner and outer race failures, is observed when seawater is added.]]></description>
      <pubDate>Tue, 06 Feb 1973 00:00:00 GMT</pubDate>
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