Fig. 2: From attainment of temperature-dependent shear wave velocities to evaluation of the axial resolution of the proposed ultrasonic monitoring technique.

a The shear wave velocity vs. temperature relationship of one of the insonified micro-sections of one of the corrosion substrates used in this work. b The temperature variation of the corrosion substrate and the thickness reconstructions of the aforementioned insonified micro-section. c The standard deviations of the temperature-compensated thickness reconstructions of all the insonified micro-sections of the corrosion substrate.