# Evolution of texture and microstructure during accumulative roll bonding of aluminum AA5086 alloy

## TL;DR

This study investigates how accumulative roll bonding affects the texture and microstructure of AA5086 aluminum alloy, revealing grain refinement, strong texture development, and significant strengthening after multiple passes.

## Contribution

It provides detailed microstructural and mechanical evolution data during ARB of AA5086, highlighting the formation of submicron subgrains and texture development.

## Key findings

- Submicron subgrains (~200-300 nm) form inside the microstructure.
- Material develops a strong FCC rolling texture.
- Proof stress increases over three times after 8 passes.

## Abstract

In the present investigation, a strongly bonded strip of an aluminium-magnesium based alloy AA5086 is successfully produced through accumulative roll bonding (ARB). A maximum of up to eight passes has been used for the purpose. Microstructural characterization using electron backscatter diffraction (EBSD) technique indicates the formation of submicron sized (~200-300 nm) subgrains inside the layered microstructure. The material is strongly textured where individual layers possess typical FCC rolling texture components. More than three times enhancement in 0.2% proof stress (PS) has been obtained after 8 passes due to grain refinement and strain hardening

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Source: https://tomesphere.com/paper/1704.06732