experimental investigation of thermal conductivity of aluminum alloy 3003 produced by equal channel angular rolling process

equal channel angular rolling (ecar) process is one of the methods that have been used to makeultra-fine materials by imposing severe plastic deformation. after repeating the process severaltimes, a large effective strain is applied to the sample that can cause decreasing the grain size andimproving the mechanical and physical properties of the metal. in this study, thermal conductivityof the samples that were produced by ecarwas investigated experimentally. accordingly, thestrips of aluminum alloy 3003 were ecared up to 10 passes through route-a and route-c. theeffect of number of ecar pass and routes of ecar process (a and c) were investigated.furthermore, tensile behavior and micro-hardness of ecared samples werestudied.according tothe results,the thermal conductivity of samples increased up to definite pass and raised to itsmaximum value, then had an oscillatory trend up to tenth pass. although this improvement of thethermal conductivitywasn’t significantly, but the improvement of yield and ultimate strength andmicro-hardness of the samples in passes associated with the maximum thermal conductivity, weremeaningfully and so,this ecared alloys can be used in harder situation.