Accession Number:

ADA083768

Title:

The Effect of Microstructure on the Properties of High Strength Aluminum Alloys

Descriptive Note:

Annual rept. Feb 79-Feb 80

Corporate Author:

GEORGIA INST OF TECH ATLANTA FRACTURE AND FATIGUE RESEARCH LAB

Report Date:

1980-02-01

Pagination or Media Count:

67.0

Abstract:

This program was initiated on 1 January 1978. During 1979, the effect of copper content on the FCP behavior of four Al-6Zn-2Mg-XCu-T7351 alloys was investigated in dry air and distilled water and compared with last years study of the T651 condition. The peak-aged-treatment exhibited a lower growth rate in dry air over the range of delta K studied, and also displayed a higher threshold and resistance to fatigue cracking near the threshold in the distilled water environment.

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE