A lightweight shape-memory alloy with superior temperature-fluctuation resistance.

ABSTRACT: In advanced applications such as aerospace and space exploration, materials must balance lightness, functionality and extreme thermal fluctuation resistance^1,2. Shape-memory alloys show promise with strength, toughness and substantial strain recovery due to superelasticity, but maintaining low mass and effective operation at cryogenic temperatures is challenging^3-6. We hereby introduce a new shape-memory alloy that adheres to these stringent criteria. Predominantly composed of Ti and Al with a chemical composition of Ti_75.25Al₂₀Cr_4.75, this alloy is characterized by a low density (4.36 × 10³ kg m^-3) and a high specific strength (185 × 10³ Pa m³ per kg) at room temperature, while sh

SUBMITTER: Song Y 

PROVIDER: S-EPMC11864968 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature