About: Microstructural evolution and mechanical properties of high purity aluminium processed by equal-channel angular pressing

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	High purity (99.999%) Al was subjected to ECAP for up to 8 passes through route BC. Hardness measurements and tensile tests were conducted at room temperature with respect to the number of ECAP passes. It is shown that the hardness and the tensile strength increased to take a maximum at 2 passes. However, unusual behaviour was observed such that further straining by ECAP for more than 2 passes decreased the hardness and tensile strength. Microstructural observation revealed that straining by ECAP for 2 passes led to the development of a subgrain structure having dislocations within some subgrains and tangled dislocations near subgrain boundaries. After 8 passes, the grains became larger and the grain boundaries sharpened and clearly defined. It is considered that the high dislocation mobility arising from high stacking fault energy and very low level of impurities were responsible for the unusual tensile behaviour and the difficulty in reducing the grain size. High purity (99.999%) Al was subjected to ECAP for up to 8 passes through route BC. Hardness measurements and tensile tests were conducted at room temperature with respect to the number of ECAP passes. It is shown that the hardness and the tensile strength increased to take a maximum at 2 passes. However, unusual behaviour was observed such that further straining by ECAP for more than 2 passes decreased the hardness and tensile strength. Microstructural observation revealed that straining by ECAP for 2 passes led to the development of a subgrain structure having dislocations within some subgrains and tangled dislocations near subgrain boundaries. After 8 passes, the grains became larger and the grain boundaries sharpened and clearly defined. It is considered that the high dislocation mobility arising from high stacking fault energy and very low level of impurities were responsible for the unusual tensile behaviour and the difficulty in reducing the grain size. (en)
Title	Microstructural evolution and mechanical properties of high purity aluminium processed by equal-channel angular pressing Microstructural evolution and mechanical properties of high purity aluminium processed by equal-channel angular pressing (en)
skos:prefLabel	Microstructural evolution and mechanical properties of high purity aluminium processed by equal-channel angular pressing Microstructural evolution and mechanical properties of high purity aluminium processed by equal-channel angular pressing (en)
skos:notation	RIV/68081723:_____/08:00377776!RIV13-AV0-68081723
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Sklenička, Václav Dvořák, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	379335
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/08:00377776
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	pure aluminium; equal-channel angular pressing (ECAP); tensile property; strain rates; grain refinement; stacking fault energy (en)
http://linked.open.../riv/klicoveSlovo	stacking fault energy grain refinement strain rates equal-channel angular pressing (ECAP) pure aluminium tensile property
http://linked.open...odStatuVydavatele	JP - Japonsko
http://linked.open...ontrolniKodProRIV	[FB7030892AAC]
http://linked.open...i/riv/nazevZdroje	Materials Transactions
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	49
http://linked.open...iv/tvurceVysledku	Dvořák, Jiří Sklenička, Václav Horita, Z.
http://linked.open...ain/vavai/riv/wos	000253442100004
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	1345-9678
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.2320/matertrans.ME200719
is http://linked.open...avai/riv/vysledek of	Microstructural evolution and mechanical properties of high purity aluminium processed by equal-channel angular pressing

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