An accelerated solution treatment process for aluminum alloys

摘要

A method of heat treating an aluminum alloy, the method comprising: forming a temperature within a process vessel between a heat soak temperature and a liquidus temperature of the alloy; rapidly heating the alloy to the soak temperature in a first heating process; reducing the temperature within the process vessel to the soak temperature; andheating the alloy to a temperature above the soaking temperature by a gradually increasing temperature in a second heating operation, wherein a log for the second heating operation is based on a kinetic model, wherein the kinetic model comprises a dissolution kinetics, wherein the dissolution kinetics uses the equations and wherein radius of a i-th precipitate before dissolution, Cid is an equilibrium concentration of the solution at a dissolution temperature, C is an equilibrium concentration of the solution at a growth temperature, CiP is a concentration of the solution in the ith element, your diffusivity is i-th precipitate, p is the curvature of the precipitate, t is the dissolution time, C (r, t) is the concentration of an ith element at the position r, and at time t, C (r, t) is the concentration of a jth element in the Position r and time t, while DDiffusionkoeffizienten the solution in the aluminum matrix and T is the temperature.