Casting Charpy Impact Testing

Nov 26, 2019

For some castings and applications, it is important for foundries to determine whether specific alloys are more brittle or ductile. Charpy impact testing of castings is a common method of making this determination. Charpy impact testing uses a standard notched sample, which is struck by a specific weight pendulum raised to a predetermined height. The amount of energy that is absorbed when the sample fracture indicates the toughness of the test material. Fractures requiring more energy indicate a ductile alloy. Less energy indicates a more brittle alloy.