Ball Impact Toughness
Impact toughness measures how well a material withstands impact – it is tested by striking through balls. A high value means the material is more resistant to impact.
Physical-Chemical Mechanism of Action
The ball impact toughness is measured by the penetration of balls in a special device. The process generates a high pressure wave energy that tests the material. A high value means that the material behaves well under impact loading.
Metallurgical Relevance & Welding Risks
A low ball impact toughness value can lead to cracks and deformations, especially under high pressure waves or strong impacts. This can impair the safety and functionality of the component.
Workshop Practice & Action Instructions
To improve ball impact toughness, certain additions such as silicon or nickel can be added. The temperature and pressure during welding must be precisely controlled to optimize the microstructure and avoid cracks.