Archard’s wear law and the contact mechanics method are used to evaluate the evolution of contact characteristics including contact pressure,contact width,gap and slip functions under conditions of different tangential force within slip zones of curvic attachments of a gas turbine with wedge-side surface in fretting.It can be concluded that the repeated slip occurring near the edges of contact generates wear that changes the contact geometry and contact stresses.Thus,the change of contact geometry and redistribution of the contact pressure in turn influences the wear rate in the slip zones.All functions in the wear contact problem are time-dependent and inter-connected.The results,compared to the experimental ones,show that the present model is valid and reasonable.