Transformations during continuous cooling of a β-Cu-22.72Al-3.55Be (at.%) alloy

Phase transformations during continuous cooling of polycrystalline β-CuAlBe alloys

“…The evolution of the microstructures and the critical temperatures determined in the studied alloys were compared to those reported for polycrystals Cu-23.26Al (at%) [8,2], Cu-22.7Al-2.8Be (at%) [7], and a Cu-23.23Al-3.54Be (at%) monocrystalline alloy [9]. A quasi-binary Cu-Al-Be phase diagram, for approximately 23 at% Al, was built based on continuous cooling data (Fig.…”

“…The decomposition, ordering, and martensitic transformation of ␤ phase were monitored by electrical resistivity measurements, microscopical examinations, and differential scanning calorimetry (DSC). The behaviour of these alloys is compared to that of ␤ Cu-Al [1,8] alloys, and ␤ Cu-Al alloys with different contents of Be [7,9].…”

A novel laminate combined with elasticity and damping

“…In addition, the transformation temperature, such as A s of the composite laminate (corresponding to the temperatures of B point), was 110 • C and lower than those of the Cu-based shape memory alloy, which was caused by the diffusion of Be from QBe2 layer into shape memory alloy layer during heat treatment [20] and the restraint of the composite structure.…”

Kinetics of isothermal decomposition in polycrystalline β CuAlBe alloys

“…7 shows that after a maximum at around 8 min, fvg 2 decreases slightly. This would be associated with the partial dissolution of the small fragments [8] sized below a critical radius, as well as the difficulty in measuring the submicron precipitates.…”