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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10189000" target="_blank" >RIV/00216208:11320/13:10189000 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/13:43896449

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.msea.2013.08.008" target="_blank" >http://dx.doi.org/10.1016/j.msea.2013.08.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.msea.2013.08.008" target="_blank" >10.1016/j.msea.2013.08.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 s

Název v anglickém jazyce

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

Popis výsledku anglicky

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 s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GBP108%2F12%2FG043" target="_blank" >GBP108/12/G043: Mikro- a nanokrystalické materiály s vysokým podílem rozhraní pro moderní strukturní aplikace, biodegradabilní implantáty a uchovávání vodíku</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing

ISSN

0921-5093

e-ISSN

—

Svazek periodika

586

Číslo periodika v rámci svazku

DEC 1 2013

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

284-291

Kód UT WoS článku

000326903800037

EID výsledku v databázi Scopus

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