Effect of severe plastic deformations on structure features and mechanical behavior of Al4Ca intermetallic in Al-18% Ca alloy
Source abstract
Abstract
Abstract The influence of severe plastic deformation by high-pressure torsion (HPT) on the phase composition, structure, and properties of Al-18% Ca alloy containing the Al4Ca intermetallic was studied. It was established that even after 5 turns of HPT, the additional hardening of the alloy does not exceed 30–40 HV, and the Al4Ca intermetallic is noticeably plastically deformed, which is clearly seen from the change in the microstructure; its fine structure after 5 turns of HPT is polygonized with a large number of defects in the crystal structure, the size of subgrains is predominantly 10–50 nm. Using X-ray phase analysis, it was found that calcium does not dissolve in aluminum solid solution even after 5 turns of HPT.
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Research context
OpenAlex topics: Microstructure and mechanical properties · Aluminum Alloys Composites Properties · Aluminum Alloy Microstructure Properties
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