Interphase boundary energy
The phase boundary energy is the energy that occurs at the boundary between two different crystal phases. It influences the growth and shape of grains in the metal.
Physical-Chemical Mechanism of Action
Interphase boundary energy is the energy that occurs at the interface between two different crystal phases. This energy can be either positive or negative and influences the growth and shape of grains in the metal.
Metallurgical Relevance & Risks in Welding
High interphase boundary energy can lead to slow grain growth and stable structures, which increases toughness. However, low interphase boundary energy can lead to rapid growth and unstable structures, which reduces hardness and fracture strength.
Workshop Practice & Instructions
To achieve an optimal grain structure, it is important to set welding parameters such as temperature and time so that the interphase boundary energy is optimal. This can be achieved by selecting the appropriate welding process and correctly controlling the welding procedures.