title: Ultrasonic characterization of materials hardness
abstract: In this paper, an experimental technique has been developed to measure velocities and attenuation of ultrasonic waves through a steel with a variable hardness. A correlation between ultrasonic measurements and steel hardness was investigated.
authors.affiliation: Characterization and Instrumentation Laboratory, Research Center of Welding Technology and N.D.T.-CSC-, Cheraga, Algiers, Algeria. abadidi@hotmail.com
authors.lastname: Badidi Bouda A
authors.initials: A
authors.lastname: Benchaala
authors.initials: K
authors.lastname: Alem