Study of CuAlBe Shape Memory Alloy by X-Ray Diffraction

Abstract

A complete study of Ms-30 o C polycrystalline CuAlBe shape memory alloy is made by X Ray diffraction using a texture goniometer equipped with a curved position sensitive detector. Austenite and martensite unit cells parameters are measured; Measured indexes and orientation of the habit plane are compared to those expected by the lattice parameters. Austenite after extrusion shows a strong fiber texture, volumic fraction of austenite and martensite are measured according to the deformation. Internal deformations of three grains of a Ms-100 o C CuAlBe sample are followed during their macroscopic deformation