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可热处理合金的原有强度用添加合金元素(如铜、镁、锌及硅)的方法来提高。因为这些元素分别地或以不同的配合比显示出,在铝中的固溶度随温度增高而增大,它可用热处理方法使合金显著强化。基本的热处理有退火(表1)、固溶热处理(表2)及人工时效或析出热处理(表2、3、4)。所有的变形铝合金均可在退火状态使用。此外按要求由其他原始状态、加工后或连续加工(如深拉)的工序之间可以把合金退火。溶解性一系指在固溶热处理过程把可溶解的元素或某些元素溶入固溶体内。随高温处理之后进行快速淬火(经常在水中),这种淬火使显微组织暂时固定(冻结)并在短时间内显示
The original strength of heat-treatable alloys is enhanced by the addition of alloying elements such as copper, magnesium, zinc and silicon. As these elements, individually or in different proportions, show that the solid solubility in aluminum increases with increasing temperature, which can be significantly enhanced by heat treatment. The basic heat treatment is annealing (Table 1), solution heat treatment (Table 2) and artificial aging or precipitation heat treatment (Table 2, 3, 4). All of the deformed aluminum alloys can be used in the annealed state. In addition, the alloy can be annealed as required by other primitive conditions, post-processing or continuous processing (eg deep drawing). Solubility refers to the dissolution of soluble elements or elements dissolved in solid solution in the solution heat treatment process. Quenching (often in water) after high temperature treatment, this quenching temporarily fixes the microstructure (freezing) and displays it in a short period of time