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Re-crystallization is that when the annealing temperature is high enough and the time is long enough, the new grains without strain (re-crystallization core) are generated in the fiber structure of the deformed metal or alloy, and the new grains continue to grow until the original deformed structure completely disappears, and the performance of the metal or alloy also changes significantly. This process is called re-crystallization, and the temperature at which the new grains are generated is called the beginning of re-crystallization Temperature, the temperature that the micro-structure is all occupied by new grains is called the final re-crystallization temperature, generally what we call the re-crystallization temperature is the arithmetic average of the beginning re-crystallization temperature and the end re-crystallization temperature, the general re-crystallization temperature is mainly affected by the alloy composition, deformation degree, original grain size, annealing temperature and other factors.

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