Accession Number:

AD0614080

Title:

STRUCTURE OF DEFORMED INTERNALLY OXIDIZED ALLOYS,

Descriptive Note:

Corporate Author:

STANFORD UNIV CALIF DEPT OF MATERIALS SCIENCE

Personal Author(s):

Report Date:

1965-02-01

Pagination or Media Count:

32.0

Abstract:

The structure of deformed internally oxidized alloys of silver containing magnesium and copper containing aluminum were studied by thin film transmission electron microscopy. With low to moderate amounts of strain, the deformation structure in the dispersion-hardened alloys was found to consist of a high density of dislocations arranged in a random distribution or in a very fine, but poorly defined, cell structure, depending on the fineness of the dispersion and amount of deformation. In contrast, both pure copper and silver show relatively large, distinct cell structures. The particular structures in the alloys are believed to result from particles acting as both dislocation sources and deflectors. The lack of a pronounced deformation texture and regions of severe local plastic curvature after heavy deformation can also be traced to the formation of dislocations on many slip systems and a lack of local concentrations of dislocations of predominantly one sign. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE