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  • This paper examines the effect of equal-channel angular pressing (ECAP) on creep behaviour of pure aluminium, binary Al-0.2wt.%Sc alloy and ternary Al-3wt.%Mg-0.2wt.%Sc alloy. The ECAP was conducted at room temperature with a die that had a 90° angle between the channels and 8 repetitive ECAP passes followed route Bc. Constant stress compression creep tests were performed at 473 K and stresses ranging between 16 to 80 MPa on ECAP materials and, for comparison purposes, on the initial coarse-grained materials. The results showed that the creep resistance of the ECAP processed Al-Sc and Al-Mg-Sc alloys was markedly deteriorated with respect to unpressed coarse-grained materials.
  • This paper examines the effect of equal-channel angular pressing (ECAP) on creep behaviour of pure aluminium, binary Al-0.2wt.%Sc alloy and ternary Al-3wt.%Mg-0.2wt.%Sc alloy. The ECAP was conducted at room temperature with a die that had a 90° angle between the channels and 8 repetitive ECAP passes followed route Bc. Constant stress compression creep tests were performed at 473 K and stresses ranging between 16 to 80 MPa on ECAP materials and, for comparison purposes, on the initial coarse-grained materials. The results showed that the creep resistance of the ECAP processed Al-Sc and Al-Mg-Sc alloys was markedly deteriorated with respect to unpressed coarse-grained materials. (en)
  • Byl studován vliv intenzivní plastické deformace (ECAP) na creepové chováni čistého hliníku, binární slitiny Al-0,2wt.%Sc a ternární slitiny Al-3wt.%Mg-0,2wt.%Sc. ECAP byl prováděn při pokojové teplotě, kanály použitého lisovacího nástroje svíraly úhel 90º a materiál byl protlačován 8krát podle schématu Bc. Creepové zkoušky v tlaku při konstantním napětí byly prováděny při teplotě 473 K a v rozsahu napětí od 16 do 80 MPa. Pro srovnání byl kromě ECAP materiálů creepově zkoušen výchozí hrubozrnný materiál. Výsledky ukázaly, že creepová odolnost slitin Al-Sc a Al-Mg-Sc připravených metodou ECAP byla výrazně horší než u výchozích hrubozrnných materiálů. (cs)
Title
  • Effect of equal channel angular pressing (ECAP) on creep in aluminium alloys
  • Effect of equal channel angular pressing (ECAP) on creep in aluminium alloys (en)
  • Vliv intenzivní plastické deformace (ECAP) na creepové chování hliníkových slitin (cs)
skos:prefLabel
  • Effect of equal channel angular pressing (ECAP) on creep in aluminium alloys
  • Effect of equal channel angular pressing (ECAP) on creep in aluminium alloys (en)
  • Vliv intenzivní plastické deformace (ECAP) na creepové chování hliníkových slitin (cs)
skos:notation
  • RIV/67985840:_____/07:00094665!RIV08-AV0-67985840
http://linked.open.../vavai/riv/strany
  • 2904;2909
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(IAA2041301), Z(AV0Z10190503), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika
  • -
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 418910
http://linked.open...ai/riv/idVysledku
  • RIV/67985840:_____/07:00094665
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • equal-channel angular pressing; aluminium alloys; ultrafine-grained microscructure (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [95A3B347E7F7]
http://linked.open...i/riv/nazevZdroje
  • Materials Science Forum
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 539-543
http://linked.open...iv/tvurceVysledku
  • Dvořák, Jiří
  • Král, Petr
  • Kvapilová, Marie
  • Sklenička, Václav
  • Svoboda, Milan
  • Saxl, Ivan
  • Horita, Z.
http://linked.open...n/vavai/riv/zamer
issn
  • 0255-5476
number of pages
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