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An Evaluation of Homogeneity and Heterogeneity in Metals Processed by High-Pressure Torsion

Title
An Evaluation of Homogeneity and Heterogeneity in Metals Processed by High-Pressure Torsion
Author
Megumi Kawasaki
Keywords
SEVERE PLASTIC-DEFORMATION; GRAIN-REFINEMENT; MICROSTRUCTURAL EVOLUTION; MAGNESIUM ALLOYS; NICKEL; ECAP; INHOMOGENEITIES; PRINCIPLES; ALUMINUM; BEHAVIOR
Issue Date
2012-09
Publisher
Polish Academy of Sciences Warsaw
Citation
Acta Physica Polonica Series A, 2012, 122(3), P.425-429
Abstract
Processing through the use of high-pressure torsion is attracting much attention at the present time because of the potential for achieving exceptional grain refinement. In principle, it appears that the thin disks used for high-pressure torsion processing should exhibit significant heterogeneity in the as-processed condition. However, experiments show that the development of homogeneity or heterogeneity is dependent upon the crystalline structure of the material. For high-purity aluminum the as-processed microstructure is very homogeneous after five or more revolutions of torsional straining but for the magnesium AZ31 alloy there is a considerable degree of heterogeneity in the as-processed disks.
URI
https://www.infona.pl/resource/bwmeta1.element.bwnjournal-article-appv122z3p01kzhttp://hdl.handle.net/20.500.11754/50163
ISSN
0587-4246; 1898-794X
DOI
10.12693/APhysPolA.122.425
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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