Influence of Production and Heat Treatment on Microhardness and Phase Transformations in Mg-Y-(Nd)-Zn Alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10190909" target="_blank" >RIV/00216208:11320/13:10190909 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.metal2014.com/files/uploads/02/Proceedings_METAL2013_Content.pdf" target="_blank" >http://www.metal2014.com/files/uploads/02/Proceedings_METAL2013_Content.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Production and Heat Treatment on Microhardness and Phase Transformations in Mg-Y-(Nd)-Zn Alloys

Popis výsledku v původním jazyce

Phase transformations and microhardness changes during isochronal annealing were investigated in Mg2Y1Nd1Zn and Mg2Y1Zn alloys prepared by powder metallurgy and extruded at 280 oC. These alloys were annealed in 20 oC/20 min steps from room temperature upto 440 oC. Electrical resistivity measurements at 77 K, measurement of microhardness, optical microscopy and transmission and scanning electron microscopy were used. Results were compared to squeeze cast Mg2Y1Nd1Zn and Mg2Y1Zn alloys. Resistivity annealing curves of alloys prepared by powder metallurgy exhibit similarities to those of squeeze cast alloys already one time isochronally heat treated. Microhardness was measured in two different orientations: perpendicular and parallel to extrusion direction. Microhardness of both alloys in both orientations exhibits an outstanding thermal stability up to 360 oC and exceeds that of squeeze cast alloys about approximately 50 %. No pronounced grain growth was observed even after high temperat

Název v anglickém jazyce

Influence of Production and Heat Treatment on Microhardness and Phase Transformations in Mg-Y-(Nd)-Zn Alloys

Popis výsledku anglicky

Phase transformations and microhardness changes during isochronal annealing were investigated in Mg2Y1Nd1Zn and Mg2Y1Zn alloys prepared by powder metallurgy and extruded at 280 oC. These alloys were annealed in 20 oC/20 min steps from room temperature upto 440 oC. Electrical resistivity measurements at 77 K, measurement of microhardness, optical microscopy and transmission and scanning electron microscopy were used. Results were compared to squeeze cast Mg2Y1Nd1Zn and Mg2Y1Zn alloys. Resistivity annealing curves of alloys prepared by powder metallurgy exhibit similarities to those of squeeze cast alloys already one time isochronally heat treated. Microhardness was measured in two different orientations: perpendicular and parallel to extrusion direction. Microhardness of both alloys in both orientations exhibits an outstanding thermal stability up to 360 oC and exceeds that of squeeze cast alloys about approximately 50 %. No pronounced grain growth was observed even after high temperat

Druh

D - Stať ve sborníku

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

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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 statě ve sborníku

METAL 2013 Conference Proceedings

ISBN

978-80-87294-41-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

1498-1503

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

15. 5. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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