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Interpretation of the Friction Coefficient During Reciprocating Sliding of Ti6Al4V Alloy Against Al2O3

By S. Mitrovic, M. Babic, F. Zivic and P. Todorovic


Tribological behaviour of Ti6Al4V alloy, during linear reciprocating sliding against alumina, at nanotribometer (ball-on-flat type of contact) was investigated. Experiments were carried out for sliding in Ringer's solution, over a range of loads (100 - 1000 mN) and speeds (4 - 12 mm/s). Friction behaviour of the contact pairs was investigated by analysis of the dynamic friction coefficient plots and effective root mean square (rms) coefficient of friction, COFrms. Presented mathematical envelopes of dynamic coefficient of friction curves and averaged envelope signals provided additional explanation of one calculated COFrms value. Envelopes of dynamic coefficient of friction enabled easier determination of different periods during sliding, which were further related to wear mechanisms

Topics: Dynamic friction coefficient, Ti6Al4V, Alumina, Nanotribometer, Mechanical engineering and machinery, TJ1-1570, Technology, T, DOAJ:Mechanical Engineering, DOAJ:Technology and Engineering
Publisher: University of Kragujevac
Year: 2011
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