Analysis of the Combine ECAP's Heat Treatment for Creating Aluminum Chips, as Well as a Correlation and Regression Analysis of the solid-state data

Abstract

The primary objective of this study is to provide a green solution for aluminum recycling. For the aluminum industry to become more circular, it is crucial that innovative recycling methods be developed to maximize the potential for scrap reuse and reduce CO2 emissions. In this article, we discuss how energy and material costs were reduced by recycling aluminum chip waste without first remelting the chips. Solid state recycling or direct recycling are common terms for the method shown here. Chips are cleaned, cold pre-compacted, and hot direct extruded in the solid state recycling process. This is followed by equal channel angular pressing (ECAP) and heat treatment. The effect of artificial aging time and temperature, as well as holding time during solid solution treatment, on the mechanical characteristics of recycled EN AW 6082 aluminum chips was studied. The studies were carried out using a response surface methodology and a design of experiments strategy. The effect of changing the settings of the heat treatment for the proposed solid state recycling process on the mechanical properties of the recycled samples was modeled using a regression analysis. When compared to commercially manufactured EN AW 6082 aluminum alloy in T6 temper condition, the mechanical properties of the recycled samples obtained using the innovative process were found to be comparable. The recycled samples were also analyzed using metallography. Models using regression and correlation analysis have been created to describe the impact of heat treatment settings on the mechanical properties of the generated samples reported in the statistical analysis. using MATLAB as analytical program to conduct correlation and regression.