Research on Surface Properties of TA2 Commercially Pure Titanium Surface by Friction Stir Processing

摘要

Friction stir procession for TA2 Commercially Pure Titanium was successfully performed The microstructure characteristics of stir zone.ther-momechanically affected zone and heat affected zone were investigated. The wear properties and electrochemistry corrosion resistance contrast between base material and friction stir procession sample was analyzed in detail. The results indicate that the microstructure of stir zone and thermomechanically affected zone that stir zone friction stir procession exhibits greatly refined equiaxial grains and obtains the better mechanical performance, stir zone show much better wear resistance when abrasive wear cycles is 1000 r,1500 r,2000 r.the abrasion loss of stir zone is respectively smaller than base material about 31. 4%,36. 6%,46. 4%. Electrochemistry corrosion resistance of friction stir processing sample has fallen slightly.