Precipitation Kinetic Growth Phase
The precipitation kinetic growth phase is the period in which newly formed phase particles grow by mass transport in the matrix. This process influences the final strength properties of the material.
Physical-Chemical Mechanism of Action
Newly formed phase particles grow by mass transport of atoms or ions from the matrix into the particles. This process is temperature-dependent and influenced by diffusion processes.
Metallurgical Relevance & Welding Risks
Too rapid growth can lead to uneven phase distribution, affecting the strength and toughness of the material. Too slow growth can lead to large grain size and thus low toughness.
Workshop Practice & Action Instructions
Ensure that the weld pool is kept stable to guarantee uniform growth of phase particles. Use appropriate welding parameters such as temperature and time to optimize the precipitation kinetic growth phase.