Non-isothermal flow of Al-, Co- and Cu-based alloys made in different spatial configurations or structural states: model and experimental study

TL;DR

This paper presents a comprehensive model and experimental validation for non-isothermal flow in Al-, Co-, and Cu-based alloys, including deformation behavior, thermal expansion, and structural analysis.

Contribution

It introduces a universal approach for modeling non-isothermal alloy behavior and deformation, validated by experimental data and microscopic analysis.

Findings

Strong correlation between model predictions and experiments

Calculated necking contours and critical thickness

Fractal analysis of corrugation folds

Abstract

The universal generalising approach for non-isothermal behaviour of different alloys has been provided together with the novel deformation modelling. Strong correlation between the model approach and experimental results is shown that permits estimation of main applied parameters such as the linear thermal expansion coefficient and others. Necking contours and critical thickness at corrugation for ribbon and rod specimens are also calculated. Fractal analysis of corrugation folds (their main size) has been carried out for polycrystalline and amorphous ribbon specimens. Structural peculiarities at the plastic deformation stage are investigated with microscopy.