About: Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The effect of hot extrusion at 350°C on microstructure, thermal, electrical and mechanical properties of the AlMnScZr alloy was studied. The samples of the cast and of the hotextruded alloys were annealed from 20°C up to 600°C. Transmission and scanning electron microscopy and electron backscatter diffraction examinations of specimens quenched from temperatures of significant resistivity changes were used to identify microstructural processes responsible for these changes. The cast as well as hot-extruded alloy is characterized by a dispersion of fine coherent Al3Sc and/or Al3(Sc,Zr) particles, and furthermore the fine (sub)grain structure was observed in the hot-extruded alloy. Microhardness HV1 and resistivity values reflect different microstructure of the alloys accordingly. The distinct resistivity changes of the alloys are mainly caused by precipitation of Mn-containing particles. The apparent activation energy for the Al6Mn phase precipitation in the hot-extruded alloy was also determined. The obtained results agree with those observed in the alloys prepared by powder metallurgy studied in our previous work. The effect of hot extrusion at 350°C on microstructure, thermal, electrical and mechanical properties of the AlMnScZr alloy was studied. The samples of the cast and of the hotextruded alloys were annealed from 20°C up to 600°C. Transmission and scanning electron microscopy and electron backscatter diffraction examinations of specimens quenched from temperatures of significant resistivity changes were used to identify microstructural processes responsible for these changes. The cast as well as hot-extruded alloy is characterized by a dispersion of fine coherent Al3Sc and/or Al3(Sc,Zr) particles, and furthermore the fine (sub)grain structure was observed in the hot-extruded alloy. Microhardness HV1 and resistivity values reflect different microstructure of the alloys accordingly. The distinct resistivity changes of the alloys are mainly caused by precipitation of Mn-containing particles. The apparent activation energy for the Al6Mn phase precipitation in the hot-extruded alloy was also determined. The obtained results agree with those observed in the alloys prepared by powder metallurgy studied in our previous work. (en)
Title	Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate (en)
skos:prefLabel	Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate Response of Hot-Extruded Al-Mn-Sc-Zr Alloy to Annealing with Constant Heating Rate (en)
skos:notation	RIV/68407700:21220/13:00208766!RIV14-MSM-21220___
http://linked.open...avai/riv/aktivita	V
http://linked.open...avai/riv/aktivity	V
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Málek, Jaroslav
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	102645
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/13:00208766
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Al3(Sc,Zr) phase; activation energy; electrical resistivity; Al6Mn precipitation; TEM; DSC (en)
http://linked.open.../riv/klicoveSlovo	DSC TEM activation energy Al3(Sc Al6Mn precipitation Zr) phase electrical resistivity
http://linked.open...ontrolniKodProRIV	[819D8DDE355C]
http://linked.open...v/mistoKonaniAkce	Istanbul
http://linked.open...i/riv/mistoVydani	ZURICH
http://linked.open...i/riv/nazevZdroje	Defect and Diffusion Forum
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	8 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Málek, Jaroslav Smola, B. Stulíková, I. Neubert, V. Tanprayoon, D. Kekule, T. Vlach, M. Císařová, H.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000317868600028
http://linked.open.../riv/zahajeniAkce	2012-06-25 (xsd:date)
issn	1012-0386
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.4028/www.scientific.net/DDF.334-335.161
http://purl.org/ne...btex#hasPublisher	TRANS TECH PUBLICATIONS LTD
https://schema.org/isbn	978-3-03785-662-8
http://localhost/t...ganizacniJednotka	21220

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