Explanation
sensitivity to intergranular fracture in materials with little or no deformation. According to the crack propagation path, fracture can be divided into transgranular and intergranular. intergranular fracture refers to the fracture caused by the crack propagating along the grain boundary of materials. Transgranular or intergranular fracture does not characterize brittleness. Transgranular fracture is ductile, such as dimple fracture; There are also brittle, such as cleavage quasi cleavage fatigue fracture, etc. Similarly, intergranular fracture has brittleness, such as temper brittleness, hydrogen embrittlement, stress corrosion cracking, quenching cracking, etc; There are also ductile, such as overheating stone fracture, shell fracture, etc. Electronic fractography analysis is one of the important means to determine the grain boundary brittleness of materials.
Classification
Fundamental of Material Science -> Structural basis of materials