公开(公告)号：US3881966A

公开(公告)日：1975-05-06

申请号：US37015973

申请日：1973-06-14

Applicant: ALUMINUM CO OF AMERICA

Inventor： STALEY JAMES T ,  HUNSICKER HAROLD Y ,  BROWN ROBERT H

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 zirconium or both zirconium and 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.

Abstract translation: 含有锌，铜和镁的锆基合金以及锆或锆以及锆和锰两者都具有特殊控制的组成极限，当热处理成具有高抗应力腐蚀开裂性的条件时，其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。