Characterization of deformation behaviour of aluminium alloy AA6082 processed by HPT

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F12%3A%230000368" target="_blank" >RIV/26316919:_____/12:#0000368 - isvavai.cz</a>
Result on the web
<a href="http://www.kovmat.sav.sk/abstract.php?rr=50&cc=5&ss=319" target="_blank" >http://www.kovmat.sav.sk/abstract.php?rr=50&cc=5&ss=319</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Characterization of deformation behaviour of aluminium alloy AA6082 processed by HPT
Original language description
In this study, ultrafine grain structure evolution during high pressure torsion (HPT) of commercial aluminium alloy AA6082 at an elevated temperature is presented. Two different initial structural states of the alloy were prepared by thermal treatment. The dependence of the progress of microstructure refinement on shear strain was investigated by TEM observation of thin foils. The impact of various amounts of strain (?ef ) was analysed with respect to the increased temperature of deformation. Microhardness data measured across the deformed discs show scatter. Observation of microstructure revealed that an ultrafine grain (UFG) structure formed in the deformed disc as early as the end of the first turn, regardless of the initial structure of alloy resulting from the prior thermal treatment. The heterogeneity of UFG deformed structure in the deformed discs is consistent with the scatter in microhardness values. By increasing the strain level through adding turns (N = 2, 4, 6), the UFG st
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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