Evidence for localized melting during dynamic hot compression of Ti-6Al-4V alloy
Source abstract
Abstract
Heat-treated Ti-6Al-4V alloy with three different microstructures was dynamically deformed at a varied temperature range (up to 450 °C). The specimens deformed with 1 and 10 2 s −1 strain rates at 300 °C show extensive shear banding. Formation of dendritic structure has been observed inside highly strained shear bands. Furthermore, the fracture surface of sheared samples exhibits spherical particles sticking to the surface. Compositional analysis using EDS depicts these structures as close to the overall alloy composition with considerable solute segregation in spherical particles. The reason behind such observation has been described as localized melting of the alloy due to a sudden burst of strain energy during fracture and interface friction between delaminated grains. The temperature rise calculated within the ASB, based on its fraction, predicts a temperature beyond the alloy`s melting point.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-Velocity Impact and Material Behavior · Titanium Alloys Microstructure and Properties · Energetic Materials and Combustion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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