Ductile cast iron round bars was prepared using alloys with carbon equivalent percentage (C.E) in the range (4.50% and 4.76%).Ultrasonic velocity and attenuation measured using pulse echo technique of frequencies 1, 2 and 4MHz .It found that ultrasonic velocity decreases with increasing size of casting module, while attenuation coefficient increases.In addition, the nodule count decreases with inc...
Ductile cast iron round bars was prepared using alloys with carbon equivalent percentage (C.E) in the range (4.50% and 4.76%).Ultrasonic velocity and attenuation measured using pulse echo technique of frequencies 1, 2 and 4MHz .It found that ultrasonic velocity decreases with increasing size of casting module, while attenuation coefficient increases.In addition, the nodule count decreases with inc...