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铝板厂家先容铝板生产中的溶解-沉淀机理的实质

来源:  发布时间:2021-05-21 14:53:46  

一、铝板厂家先容溶解-沉淀机理的实质
1、 The essence of dissolution precipitation mechanism introduced by aluminum plate manufacturer
铝板生产过程中,溶解-沉淀机理的实质是一相晶体的原子迅速转移到另一相晶体中去。为了完成原子由一相转移至另一相,除了应保证两相有较大的相互溶解度以外,还一定具备一些条件。
In the process of aluminum plate production, the essence of dissolution precipitation mechanism is that the atoms of one phase crystal transfer to another phase crystal rapidly. In order to complete the transfer of atoms from one phase to another, in addition to ensuring that the two phases have greater mutual solubility, there must be some conditions.
二、为了达到溶解-沉淀机理的实质需要注意的条件
2、 In order to achieve the essence of the dissolution precipitation mechanism, we need to pay attention to the conditions


①因为原子的迁移,可能是从相的表面层进行,故应随着温度的变化或原有相晶体表面大小及曲率的变化,伴随有大的溶解度改变。
① Because the migration of atoms may be carried out from the surface layer of the phase, it should be accompanied by a large solubility change with the change of temperature or the change of the surface size and curvature of the original phase crystal.
②在变形时一定有利于进行高速溶解和沉积产生的扩散过程。也就是说应具备足够高的温度条件。
② During deformation, it must be beneficial to the diffusion process of high-speed dissolution and deposition. That is to say, the temperature should be high enough.
溶解-沉淀机理的重要特点是塑性变形在两相间的界面上进行,又由于金属的沉淀很容易在显微空洞和显微裂纹中进行,则原子的相间转移可使这些显微空洞和裂纹消 除,起着修 复损伤作用,从而可使金属塑性显著增 大。
The important characteristic of the dissolution precipitation mechanism is that the plastic deformation takes place at the interface between the two phases, and because the metal precipitation is easy to take place in the micro cavities and micro cracks, the inter phase transfer of atoms can eliminate these micro cavities and cracks, play a role in repairing the damage, and thus significantly increase the metal plasticity.

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