公开(公告)号：US3791880A

公开(公告)日：1974-02-12

申请号：US3791880D

申请日：1972-06-30

Applicant: ALUMINUM CO OF AMERICA

Inventor： HUNSICKER H ,  STALEY J

IPC: C22C21/10 ,  C22F1/053 ,  C22F1/04

CPC classification number: C22F1/053 ,  C22C21/10 ,  Y10S428/926 ,  Y10T428/12063 ,  Y10T428/12639

Abstract: An aluminum base alloy of the aluminum-zinc-magnesium-copperchromium type with specially controlled composition limits is provided as a sheet or plate type product having the high strength and good resistance to stress corrosion cracking normally associated with this type of alloy but also having exceptional resistance to tearing. Certain prescribed fabrication procedures including thermal treatments are preferably followed in producing the improved product.

Abstract translation: 提供具有特殊控制组成限度的铝 - 锌 - 镁 - 铜 - 铬型铝基合金，作为通常与这种合金相关的具有高强度和良好耐应力腐蚀开裂性的板或板型产品， 具有优异的抗撕裂能力。 在制备改进的产品时优选遵循包括热处理在内的某些规定的制造程序。

公开(公告)号：US3836405A

公开(公告)日：1974-09-17

申请号：US27384272

申请日：1972-07-20

Applicant: ALUMINUM CO OF AMERICA

Inventor： STALEY J ,  HUNSICKER H ,  BROWN R

IPC: C22C21/10 ,  C22F1/053 ,  C22F1/04

CPC classification number: C22F1/053 ,  C22C21/10

Abstract: An aluminum base alloy containing zinc, copper and magnesium together with manganese and with specially controlled composition limits exhibits very high strength when thermally treated to a condition having high resistance to stress corrosion cracking. Improved products of the alloy also exhibit low quench sensitivity and, accordingly, high strength even in very thick sections. A special aging treatment produces the optimum combination of strength and resistance to stress corrosion cracking properties. This invention relates to improved wrought products and to a method of their production.

Abstract translation: 含有锌，铜和镁以及锰和具有特殊控制组成极限的铝基合金在热处理成具有高抗应力腐蚀开裂性的条件下表现出非常高的强度。 合金的改进产品也具有低的淬火灵敏度，因此即使在非常厚的部分也具有高强度。 特殊的老化处理产生强度和抗应力腐蚀开裂性能的最佳组合。