论文部分内容阅读
Ly_(12)铝合金是航空航天工业中使用最早而又最广的合金之一,是一种早为人们所熟知的铝—铜—镁系高强度变形铝合金。然而,对于这样一种常用合金,就其某些金属学理论(如共晶相组成、相变温度)和热处理工艺(如淬火温度、保温时间、过烧温度)迄今尚无统一定论。与我国Ly_(12)牌号相应的变形铝合金,苏联为Д_(16)牌号,美国为2024牌号,三
Ly_ (12) Aluminum alloy is one of the earliest and most widely used alloys in the aerospace industry. It is a well-known aluminum-copper-magnesium series high-strength aluminum alloy. However, for such a commonly used alloy, there is no conclusive theory about some of its metallurgy theory (such as eutectic phase composition, phase transition temperature) and heat treatment process (such as quenching temperature, holding time, over-burning temperature). With our country Ly_ (12) brand corresponding deformation aluminum alloy, the Soviet Union for the Д_ (16) brand, the United States for the 2024 grade, three