Abstract
Two materials, an intermetallic designated LT-2 and a stabilized formulation of zirconium oxide, designated 1027-ZrO2 were tested in rolling friction studies from room to 2500 F. V-groove and circular groove tests were performed with resulting friction forces measured. The friction behaviors were correlated against previously established mathematical models. It was found that these models were adequate to predict observed friction behavior for the 1027-ZrO2 material. The LT-2 material was found to experience a creep behavior which limited the accuracy of the models in the circular groove configuration when load and time at load were sufficient to cause noticeable creep. It is shown in a quantitative manner that the LT-2 creep behavior is sufficient to cause the observed deviation from the circular groove friction model.
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