Subgrain Boundary Network
Subgrain boundary network is an arrangement of dislocations that divides the crystal interior into smaller domains. It forms through recovery processes and affects mechanical properties.
Physicochemical Mechanism of Action
A subgrain boundary network consists of dislocations that subdivide the crystal lattice into smaller domains. These dislocations arise from mechanical loading and recovery processes. They influence the movement of atoms within the lattice.
Metallurgical Relevance & Welding Risks
A dense subgrain boundary network can increase a material's toughness and hardness, making it useful for specific applications like mechanical engineering. However, it can also lead to increased stress concentration, which can cause cracks or failure if the material is not handled properly.
Workshop Practice & Action Instructions
To control and optimize a subgrain boundary network, it is important to precisely set welding parameters like temperature and time. For highly stressed parts, special welding procedures should be used to stabilize the network and improve mechanical properties.