Creep slitin Mg

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Creep of Mg-alloys

Popis výsledku v původním jazyce

The contribution reviews the progress made in Mg alloys development with emphasis on microstructural interpretation. Results on the increase of creep strain with time at constant stress ? measured for limited times and strains are displayed in a form ascreep rate-strain diagrams from which the minimum creep rate stress is derived. Data on the thermal stress component ?* derived from high-precision ?-reduction tests are reported. Within a simple dislocation model these data allow one to quantify the relation between dislocation velocity v and ?*. In combination with structure evolution laws this relation serves as a basis for modeling the creep rate. New alloys have distinctly higher creep resistance than AZ91. This is due to hardening by intermetallicphases which may form a continuous skeleton along the grain boundaries and/or submicron-sized precipitates within the grains which become visible by TEM. The latter are effective in improving the long-term creep resistance.

Název v anglickém jazyce

Creep of Mg-alloys

Popis výsledku anglicky

The contribution reviews the progress made in Mg alloys development with emphasis on microstructural interpretation. Results on the increase of creep strain with time at constant stress ? measured for limited times and strains are displayed in a form ascreep rate-strain diagrams from which the minimum creep rate stress is derived. Data on the thermal stress component ?* derived from high-precision ?-reduction tests are reported. Within a simple dislocation model these data allow one to quantify the relation between dislocation velocity v and ?*. In combination with structure evolution laws this relation serves as a basis for modeling the creep rate. New alloys have distinctly higher creep resistance than AZ91. This is due to hardening by intermetallicphases which may form a continuous skeleton along the grain boundaries and/or submicron-sized precipitates within the grains which become visible by TEM. The latter are effective in improving the long-term creep resistance.

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International Symposium on Magnesium Technology in the Global Age

ISBN

1-894475-66-6

ISSN

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e-ISSN

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Počet stran výsledku

13

Strana od-do

633-645

Název nakladatele

Canadian Institute of Mining, Metallurgy and Petroleum

Místo vydání

Montreal

Místo konání akce

Montreal

Datum konání akce

1. 10. 2006

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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