阿尔阔铝业公司研制的7175—T736合金是一种飞机用铝合金。7075—T73是高强铝合金的代表,但是为了改善抗应力腐蚀开裂的能力,不得不在强度方面有些损失。7175—T736合金是为了克服上述缺点而研制的,是强度和韧性都好的合金,但在日本还没有实际生产。本研究的目的是试制7175—T736合金模锻件,测定其各种性能。阿尔阔铝业公司的生产工艺是将普通的7×××系合金在以前未采用的高温范围内进行中间均匀化处理和固溶热 Alcoa developed 7175-T736 aluminum alloy is an aircraft aluminum. 7075-T73 is a representative of high-strength aluminum alloy, but in order to improve the ability of resistance to stress corrosion cracking, there must be some loss in strength. 7175-T736 alloy is to overcome the above shortcomings and developed, is good strength and toughness of the alloy, but not in Japan, the actual production. The purpose of this study is to trial 7175-T736 alloy die forging, to determine its various properties. Alcoa Aluminum Company’s production process is the ordinary 7 × × × alloy in the high temperature range not previously used for intermediate homogenization and solution heat