Accession Number:

AD0603127

Title:

APPLICATION OF THIN-FILM ELECTRON MICROSCOPY TO REFRACTORY METAL PROCESSING.

Descriptive Note:

Quarterly progress rept. for 11 Mar-11 Jun 64,

Corporate Author:

ROCKETDYNE CANOGA PARK CALIF

Personal Author(s):

Report Date:

1964-07-11

Pagination or Media Count:

19.0

Abstract:

Results of a program to correlate substructural effects of refractory metal processing by transmission electron microscopy are presented. The results of deforming commercially pure tantalum by cold rolling are comparable to the results obtained with tantalum deformed in tension. Preliminary results of cold rolling tantalum show that dislocation arrays do not increase proportionally with the degree of cold work. On the other hand, cell structure becomes more fully defined with increasing deformation. As in tension, it was found that the grain boundaries can act either as sinks or sources for dislocation, depending upon the amount of deformation. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE