Dynamic Recovery as a Strengthening Mechanism
Abstract
Recovery usually softens strain hardened coarse grained metallic materials but it can increase the strength of ultrafine grained materials. The present work shows evidence that dynamic recovery can produce strain-hardening behavior in ultrafine grained aluminum processed by high pressure torsion. Mechanical testing reveals an increase in flow stress during low strain rate tensile tests and a decrease in strain rate during creep tests. No significant change is observed in the grain size. It is shown that this effect can be used to increase the uniform elongation of these materials.
Fields of Study & Subjects
Microstructure and mechanical properties
High-Velocity Impact and Material Behavior
Metallurgy and Material Forming
Publication details
- Journal / source
- Diffusion and defect data, solid state data. Part B, Solid state phenomena/Solid state phenomena
- Volume
- 383
- Pages
- 103–108
- Publication date
- 9 January 2026