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鋁板廠家介紹鋁板生產中的溶解-沉淀機理的實質

來源:http://www.cettools.cn/ 發布時間:2021-05-21

一、鋁板廠家介紹溶解-沉淀機理的實質
1、 The essence of dissolution precipitation mechanism introduced by aluminum plate manufacturer
鋁板生產過程中,溶解-沉淀機理的實質是一相晶體的原子迅速轉移到另一相晶體中去。為了完成原子由一相轉移至另一相,除了應保證兩相有較大的相互溶解度以外,還一定具備一些條件。
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、為了達到溶解-沉淀機理的實質需要注意的條件
2、 In order to achieve the essence of the dissolution precipitation mechanism, we need to pay attention to the conditions


①因為原子的遷移,可能是從相的表面層進行,故應隨著溫度的變化或原有相晶體表面大小及曲率的變化,伴隨有大的溶解度改變。
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在變形時一定有利于進行高速溶解和沉積產生的擴散過程。也就是說應具備足夠高的溫度條件。
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-沉淀機理的重要特點是塑性變形在兩相間的界面上進行,又由于金屬的沉淀很容易在顯微空洞和顯微裂紋中進行,則原子的相間轉移可使這些顯微空洞和裂紋消 除,起著修 復損傷作用,從而可使金屬塑性顯著增 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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