A STUDY OF THE STRUCTURE OF SINTERED ALUMINUM POWDER MATERIAL,

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Abstract:

An investigation of powder properties, of the properties of SAP pressed rods, of the region of Bragg coherent scattering and of microdistortions in powder particles as functions of the grinding milling time is presented. Particle size prior to nodulizing affects the size of the region of coherent Bragg scattering, this latter approximately equal to the particle size, with the level of microdistortions defined by the nodulizing process and the superheating of the powder during grinding. For cold- and hot - pressed briquets it was found that the dimensions of the r.c.s. and the level of microdistortions remain unchanged, while some decrease in the level of microdistortions was found to occur during hot pressing and cold rolling. Cold deformation of SAP is accompanied by breaking up of the substructure and an increase in lattice distortions. Heating of cold-deformed SAP specimens to 600 degrees C for three hours obliterates differences in degrees of deformation and is accompanied by consolidation of the r.c.s. Author

Author(s):
Fridlyander, I. N. ; Vishnyakov, Ya. D. ; Stepanova, M. G. ; Smirnova, I. N.
Author Organization(s):
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Supplementary Note:
Edited trans. of mono. Nauchnyi Sovet Kompleksnoi Probleme 'Kibernetika' Voprosy Bioniki, Moscow, 1967 p198-207.
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FTD-HT-23-1338-68
Project Number(s):
FTD-60108
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*ALUMINUM, *POWDER METALLURGY), SINTERING, POWDER METALS, ROLLING(METALLURGY), DEFORMATION, STRUCTURAL PROPERTIES, GRAIN STRUCTURES(METALLURGY), DISLOCATIONS, USSR
Field(s)/Group(s):
Metallurgy and Metallography
Keyword(s):
*SINTERED ALUMINUM POWDER
Report Date:
1969 May 15