About: Vacancy-induced hardening in Fe-Al alloys

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1088/1742-6596/443/1/012025
Description	Hardness of Fe-Al alloys shows a non-trivial dependence on chemical composition and thermal treatment of samples and cannot be fully explained by consideration of intermetallic phases formed according to the equilibrium phase diagram of Fe-Al system. Hardening in Fe-Al alloys caused by quenched-in non-equilibrium vacancies was studied in this work. Non-equilibrium vacancies introduced into the alloys by quenching from 1000 degrees C were detected by means of positron annihilation spectroscopy. The concentration of quenched-in vacancies was found to strongly increase with increasing Al content from approximate to 10(-5) at.(-1) in the alloy with c(Al) = 18 at. % up to approximate to 10(-1) at.(-1) in the alloy with c(Al) = 45 at. %. Comparison of the vacancy concentration and the Vickers microhardness revealed that hardening is proportional to square root of concentration of quenched-in vacancies. Hardness of Fe-Al alloys shows a non-trivial dependence on chemical composition and thermal treatment of samples and cannot be fully explained by consideration of intermetallic phases formed according to the equilibrium phase diagram of Fe-Al system. Hardening in Fe-Al alloys caused by quenched-in non-equilibrium vacancies was studied in this work. Non-equilibrium vacancies introduced into the alloys by quenching from 1000 degrees C were detected by means of positron annihilation spectroscopy. The concentration of quenched-in vacancies was found to strongly increase with increasing Al content from approximate to 10(-5) at.(-1) in the alloy with c(Al) = 18 at. % up to approximate to 10(-1) at.(-1) in the alloy with c(Al) = 45 at. %. Comparison of the vacancy concentration and the Vickers microhardness revealed that hardening is proportional to square root of concentration of quenched-in vacancies. (en)
Title	Vacancy-induced hardening in Fe-Al alloys Vacancy-induced hardening in Fe-Al alloys (en)
skos:prefLabel	Vacancy-induced hardening in Fe-Al alloys Vacancy-induced hardening in Fe-Al alloys (en)
skos:notation	RIV/00216208:11320/13:10189486!RIV14-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GAP108/11/1350), P(MEB101102), S
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Lukáč, František Procházka, Ivan Čížek, Jakub
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	113483
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10189486
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	positron annihilation spectroscopy; defects; Fe-Al alloys (en)
http://linked.open.../riv/klicoveSlovo	defects Fe-Al alloys positron annihilation spectroscopy
http://linked.open...ontrolniKodProRIV	[75B863E2472D]
http://linked.open...v/mistoKonaniAkce	Bristol
http://linked.open...i/riv/mistoVydani	BRISTOL
http://linked.open...i/riv/nazevZdroje	Journal of Physics: Conference Series
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...vavai/riv/projekt	Effects of cores and boundaries of nanograins on structural and physical properties of ball milled and mechanically alloyed iron-based materials. Microstructure investigation of thin metal films
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Anwand, W. Brauer, G. Lukáč, František Procházka, Ivan Čížek, Jakub Jiraskova, Y. Janickovic, D.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000321739400025
http://linked.open.../riv/zahajeniAkce	2012-08-19 (xsd:date)
issn	1742-6588
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1742-6596/443/1/012025
http://purl.org/ne...btex#hasPublisher	IOP PUBLISHING LTD
http://localhost/t...ganizacniJednotka	11320

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