Accession Number : AD0673954

Title :   ANALYSIS OF CRACKING IN SWAGED 7075-T6 ALUMINUM ALLOY TUBING.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Dahlberg,E. P.

Report Date : JUN 1968

Pagination or Media Count : 19

Abstract : Cracks at the ends of two tapered swaged 7075-T6 aluminum alloy support struts were identified as intergranular fractures by electron microscopy indicating that failure occurred by a stress-corrosion mechanism. In further support of this conclusion, microstructural examination showed that a significant short-transverse type grain orientation existed in the fracture plane. (Author)

Descriptors :   (*ALUMINUM ALLOYS, FRACTOGRAPHY), METALLOGRAPHY, CRACK PROPAGATION, COLD WORKING, PHOTOMICROGRAPHY, STRESS CORROSION, FRACTURE(MECHANICS), FAILURE(MECHANICS), GRAIN STRUCTURES(METALLURGY), MANNED SPACECRAFT

Subject Categories : Properties of Metals and Alloys
      Fabrication Metallurgy
      Manned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE