Grain refinement in a metastable beta Ti alloy deformed to large strains at high strain rates
Source abstract
Abstract
Abstract Shear punching to large plastic strains up to 40 was conducted on a metastable β Ti alloy at various speeds, creating severe plastic deformation at high shear rates ( γ ˙ ) up to 200 s−1. Grain refinement in the resulting shear bands (SBs), which experienced even faster deformation due to strain localisation, was studied using extensive TEM. Significant grain refinement occurred at γ ˙ γ ˙ deviated from this value and much coarser β grains formed at γ ˙ > 40 s−1. The effects of strain rates on grain refinement and the minimum achievable grain sizes at high strain rates are discussed based on classical dislocation dynamics.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Microstructure and mechanical properties · High-Velocity Impact and Material Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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