Deformation Textures and Mechanical Properties of Cold-Rolled Alloys

Cold rolling imposes plastic deformation on metallic alloys at ambient temperature, generating characteristic crystallographic orientations known as deformation textures. These textures arise from slip and twinning mechanisms that reorient grains and produce anisotropy in mechanical properties. The evolution of texture is governed by factors such as stacking fault energy, initial grain size and rolling path, and it profoundly influences yield strength, work hardening, ductility and fatigue resistance. In alloys of aluminium, copper, brass and stainless steel, the competition between slip systems and mechanical twinning yields prominent components—such as Brass, Copper and Goss textures—which control strain localisation, crack initiation and subsequent recrystallisation. By tailoring rolling schedules and annealing treatments, it is possible to engineer favourable textures that enhance formability, reduce earing in sheet forming and optimise directional stiffness for applications ranging from automotive body panels to electrical connectors.

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Deformation Textures and Mechanical Properties of Cold-Rolled Alloys publication trend

The graph below shows the total number of articles in deformation textures and mechanical properties of cold-rolled alloys across all publications each year (not limited to Nature Index journals).

Technical terms

Deformation texture: Preferred orientation of crystallographic planes and directions developed in polycrystalline materials during plastic deformation.

Cold rolling: Mechanical process of compressing and elongating metal at ambient temperature to refine microstructure and alter mechanical properties.

Stacking fault energy: Energy associated with deviation from the ideal stacking sequence of crystallographic planes, influencing dislocation behaviour and twinning.

Grain orientation: Spatial arrangement of the crystallographic lattice within individual grains, determining anisotropy of properties.

Twinning: Formation of a mirrored lattice region across a specific crystallographic plane, contributing to plastic deformation and texture development.

Shear band: Localised region of intense plastic deformation that forms at high strains, often influencing recrystallisation and failure.

References

1. Study on Rolling Defects of Al-Mg Alloys with High Mg Content in Normal Rolling and Cross-Rolling Processes. Materials (2023).
2. Acoustic Assessment of Microstructural Deformation Mechanisms on a Cold Rolled Cu30Zn Brass. Materials (2024).
3. Microstructure and Texture Evolution of Cu-Ni-P Alloy after Cold Rolling and Annealing. Materials (2024).