The ability of a material to resist impact loads is called impact toughness. The impact toughness is determined by a single impact test method, which involves breaking the standard specimen in one go. Use the impact energy per unit cross-sectional area at the notch of the specimen to represent the impact toughness.
The impact toughness value is related to the temperature of the test. Some materials do not exhibit brittleness at room temperature, but may undergo brittle fracture at low temperatures, a phenomenon known as cold brittleness. Materials with low impact toughness are generally referred to as brittle materials, while materials with high impact toughness are referred to as ductile materials.
The process performance of materials refers to the ability of metal materials to adapt to various cold and hot processing during the mechanical manufacturing process of parts. Including alloy flowability, malleability, weldability, machinability, etc When designing parts and selecting process methods, the process performance of metals should be considered.