Measuring the nanohardness of commercial submicrocrystalline aluminum alloys produced by dynamic pressing

The nanohardness of submicrocrystalline aluminum alloys produced by dynamic channel angular pressing has been measured. It has been shown that the nanohardness of the severely deformed material depends on the characteristics of its structural state. Grain refinement and changes in the density of dis...

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Bibliographic Details
Published in:Physics of metals and metallography 2014-05, Vol.115 (5), p.523-528
Main Authors: Chikova, O. A., Shishkina, E. V., Petrova, A. N., Brodova, I. G.
Format: Article
Language:English
Subjects:
Alloys
Aluminum alloys
Aluminum base alloys
Angular pressing
Channels
Chemistry and Materials Science
Density
Dynamics
Materials Science
Measurement
Metallic Materials
Nanohardness
Plastic deformation
Specialty metals industry
Strength and Plasticity
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Summary:The nanohardness of submicrocrystalline aluminum alloys produced by dynamic channel angular pressing has been measured. It has been shown that the nanohardness of the severely deformed material depends on the characteristics of its structural state. Grain refinement and changes in the density of dislocations have an ambiguous effect on the nanohardness of the alloys. The nanohardness variation is explained based on the current views on the mechanisms of the severe plastic deformation of alloys.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X14050044