Ultrafine-grained structure development and deformation behaviour of aluminium processed by constrained groove pressing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F09%3A%230000182" target="_blank" >RIV/26316919:_____/09:#0000182 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Ultrafine-grained structure development and deformation behaviour of aluminium processed by constrained groove pressing

Original language description

The severe plastic deformation method known as constrained groove pressing was used to produce ultrafine-grained microstructure in recrystallized aluminium (99.99%) at room temperature. The impact of repeated groove pressing, upon microstructure refinement was investigated by transmission electron microscopy of thin foils. Changes in mechanical properties measured by tensile and by hardness tests were related to microstructure development. The formation of banded subgrain microstructure with dislocationcells, and appearance of polygonal subgrains was a common feature observed in deformed plate subjected to the first pass. The substantial impact of strain upon strength increase was observed after the first pressings. The yield stress and ultimate tensile strength reached a maximum after four passes. A loss of ductility was observed in all processed plates. Hardness values measured across the deformed plates indicated heterogeneous strain distribution.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JP - Industrial processes and processing

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials Science and Engineering A

ISSN

0921-5093

e-ISSN

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Volume of the periodical

503

Issue of the periodical within the volume

15.03.2009

Country of publishing house

IE - IRELAND

Number of pages

4

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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