Journal of Applied Physics · 1952 · 39 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceChemical KineticsHeat TransferMetallurgyAlloysDefect ThermodynamicsMetallurgical KineticsMetallurgical ThermodynamicsMetalsPhysical MetallurgyActivation EnergyAnnealingAnnealing KineticsCold Work EffectsCopper AlloysLattice DefectsRecovery KineticsRecovery Processes
The resoftening kinetics for cold work in copper have been studied using residual resistance as a measure of the degree of recovery. The specimens were quickly heated to the annealing temperature, held at temperature for a measured time, and quenched for measurement. It was assumed that the cold work could be characterized by a number of lattice defects n and that the residual resistance change produced by these defects obeyed Matthiessen's rule. It was found that the resoftening could be represented by a single process of activation energy 28.3 kilocalories per mole. The complete annealing kinetics are described by a fourth-order reaction, dn/dt=−vn4e−E/RT.