Publication
Toughness measurements of a Ti-45Al-2N4u-2Nb + 0.8%vol TiB2 alloy with a. near fully lamellar microstructure and a Ti-46Al-8Nb alloy with a convoluted microstructure are performed at 650 degrees C under vacuum according to ASTM Standard E1820. Respective values of K-Ic = 18 MPa root m and 20 MPa root m are found, with comparatively good repeatability the toughness of these two alloys is thus relatively similar, despite significant differences in miciostructure and crack path.
Brice Tanguy Alphonse Lecampion, Andreas Möri
Marie Estelle Solange Violay, Corentin Jean-Marie Rémi Noël