We thank Dr. Abdel-aal for his comments and discussion. First, we would like to emphasize that the main purpose of our work was to include abrasion, besides the typically studied dissipation mechanisms in sliding pairs, i.e., thermal gradient and heat conduction. A second premise was to consider the friction and wear processes from the point of view of the systems theory. To do so, we defined a control volume corresponding to a severely deformed portion of material, or as Dr. Abdel-aal refers to, the mechanically affected zone. Such volume of material is exposed to an amount of thermal energy sufficient to initiate tribofailure, so this energy level is directly associated with the systems damage. The control volume is, as a whole, affected by the thermal gradient, however, only a small part of it contains a density of energy high enough to cause failure, so we are assuming that the majority of the volume will experience plastic deformation instead. In other words, in our model the control volume (or the mechanically affected zone) is larger than the volume removed by wear processes [1].In our work, we assume that the wear volume resulting from the dissipative irreversible processes equals the volume of material entering from the subcontact volume, allowing the control volume to remain constant, and ensuring that the net entropy flow responsible for the wear does not vanish since the temperatures at which the mass fluxes enter and leave the control volume are very different [2–4].Since we assumed that the materials properties, including density and thermal expansion coefficient, of course, do not change significantly with temperature or time within the temperature range of the experiment, the control volume in our model remains constant. Therefore, we find reasonable to suppose that the specific heat at constant pressure Cp and the specific heat at constant volume Cv are equivalent under the conditions of interest [5]. A little elaboration on this is as follows: the specific heat at constant volume is Cv≡(du/dT)v, but either for ideal gases or incompressible substances the internal energy only depends on the temperature (i.e., the term (du/dv)T is negligible), so Cv=(du/dT). On the other hand, specific heat at constant pressure is Cp≡(dh/dT)P or Cp≡((d(u+Pv))/dT)P, but in our case the pressure and the volume are constant; therefore, they can be taken out of the derivative so that CP=(du/dT)=Cv. When the temperature rises, this equivalence begins to lose its validity. However, in our model, the maximum expected flash temperature is 472 K, so its effect on the proposed equivalence is considered negligible.