About: Structural and mechanical characteristics of Mg-4Zn and Mg-4Zn-0.4Ca alloys after different thermal and mechanical processing routes

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About: Structural and mechanical characteristics of Mg-4Zn and Mg-4Zn-0.4Ca alloys after different thermal and mechanical processing routes Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1016/j.msea.2013.08.008
Description	This work studied as-cast, T4 heat-treated and ECAPed Mg-4Zn and Mg-4Zn-0.4Ca alloys using light, scanning and transmission electron microscopy, as well as X-ray diffraction, differential scanning calorimetry and mechanical testing. The as-cast alloys consisted of a-Mg dendrites, MgZn and Ca2Mg6Zn3 phases. The T4 heat treatment led to the dissolution of the MgZn phase, but the Ca2Mg6Zn3 phase was not significantly affected by this treatment. The process of ECAP resulted in significant structural refinement, fragmentation and the precipitation of intermetallic phases. Hardness, compressive and tensile yield strengths were significantly increased by the ECAP process. Moreover, the addition of Ca had a positive effect on the mechanical properties of the magnesium alloy. The maximum ultimate tensile strength of the ECAPed Mg-4Zn-0.4Ca alloy was 250 MPa. Mechanical tests at elevated temperatures and after heat treatments revealed that the ternary Mg-4Zn-0ACa alloy exhibited better thermal stability than the binary Mg-4Zn alloy. Differences in the mechanical behaviors of both alloys were discussed in relation to structural variations. This work studied as-cast, T4 heat-treated and ECAPed Mg-4Zn and Mg-4Zn-0.4Ca alloys using light, scanning and transmission electron microscopy, as well as X-ray diffraction, differential scanning calorimetry and mechanical testing. The as-cast alloys consisted of a-Mg dendrites, MgZn and Ca2Mg6Zn3 phases. The T4 heat treatment led to the dissolution of the MgZn phase, but the Ca2Mg6Zn3 phase was not significantly affected by this treatment. The process of ECAP resulted in significant structural refinement, fragmentation and the precipitation of intermetallic phases. Hardness, compressive and tensile yield strengths were significantly increased by the ECAP process. Moreover, the addition of Ca had a positive effect on the mechanical properties of the magnesium alloy. The maximum ultimate tensile strength of the ECAPed Mg-4Zn-0.4Ca alloy was 250 MPa. Mechanical tests at elevated temperatures and after heat treatments revealed that the ternary Mg-4Zn-0ACa alloy exhibited better thermal stability than the binary Mg-4Zn alloy. Differences in the mechanical behaviors of both alloys were discussed in relation to structural variations. (en)
Title	Structural and mechanical characteristics of Mg-4Zn and Mg-4Zn-0.4Ca alloys after different thermal and mechanical processing routes Structural and mechanical characteristics of Mg-4Zn and Mg-4Zn-0.4Ca alloys after different thermal and mechanical processing routes (en)
skos:prefLabel	Structural and mechanical characteristics of Mg-4Zn and Mg-4Zn-0.4Ca alloys after different thermal and mechanical processing routes Structural and mechanical characteristics of Mg-4Zn and Mg-4Zn-0.4Ca alloys after different thermal and mechanical processing routes (en)
skos:notation	RIV/00216208:11320/13:10189000!RIV14-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GBP108/12/G043)
http://linked.open...iv/cisloPeriodika	DEC 1 2013
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Vlach, Martin
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	108329
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10189000
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Mechanical properties; Microstructure; Magnesium alloys (en)
http://linked.open.../riv/klicoveSlovo	Magnesium alloys Mechanical properties Microstructure
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[45CCE482F442]
http://linked.open...i/riv/nazevZdroje	Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Interface controlled properties of micro/nanocrystalline materials for advanced structural applications, biodegradable implants and hydrogen storage
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	586
http://linked.open...iv/tvurceVysledku	Vlach, Martin Capek, Jaroslav Hradilova, Monika Kubasek, Jiří Vojtech, Dalibor
http://linked.open...ain/vavai/riv/wos	000326903800037
issn	0921-5093
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.msea.2013.08.008
http://localhost/t...ganizacniJednotka	11320

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