Fig. 3

(a) Engineering stress–strain curves for Zr-Cu-Al and Zr-Cu-Al-Ti alloys in as-cast (AC) and rejuvenated (Rej) states, with origin of the curves shifted by arbitrary units (a.u.) for clarity of representation, the ‘*’ corresponds to the yield point of the sample; (b) Stress drop magnitude and stress drop frequency measured from the engineering stress–strain plots for the two alloys in AC and Rej states; (c1-16) In-situ SEM images showing the change in deformation behavior for the four alloys, illustrating primary shear bands (Pri SB) and secondary shear bands (Sec SB).