Physical aspects of plastic deformation in Mg-Al alloys with Sr and Ca.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F09%3A00206241" target="_blank" >RIV/00216208:11320/09:00206241 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Physical aspects of plastic deformation in Mg-Al alloys with Sr and Ca.

Popis výsledku v původním jazyce

Magnesium alloys of AJ (Mg-Al-Sr) and AX (Mg-Al-Ca) series were deformed at temperatures between room temperature and 300 °C. Stress relaxation tests were performed in order to reveal features of the thermally activated dislocation motion. The work hardening rate q = ds/de decreases with increasing stress and temperature. Analysis of the q-s plots revealed the hardening and softening mechanisms operating during the deformation. Internal and effective components of the applied stress were been estimated.Very high values of the internal stress estimated at lower temperatures decrease rapidly with increasing deformation temperature. The apparent activation volume decreases with increasing effective stress. The values of the activation volume as well as the activation enthalpy indicate that the main thermally activated process is most probably the glide of dislocations in non-compact planes..

Název v anglickém jazyce

Physical aspects of plastic deformation in Mg-Al alloys with Sr and Ca.

Popis výsledku anglicky

Magnesium alloys of AJ (Mg-Al-Sr) and AX (Mg-Al-Ca) series were deformed at temperatures between room temperature and 300 °C. Stress relaxation tests were performed in order to reveal features of the thermally activated dislocation motion. The work hardening rate q = ds/de decreases with increasing stress and temperature. Analysis of the q-s plots revealed the hardening and softening mechanisms operating during the deformation. Internal and effective components of the applied stress were been estimated.Very high values of the internal stress estimated at lower temperatures decrease rapidly with increasing deformation temperature. The apparent activation volume decreases with increasing effective stress. The values of the activation volume as well as the activation enthalpy indicate that the main thermally activated process is most probably the glide of dislocations in non-compact planes..

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/1M0556" target="_blank" >1M0556: Ekocentrum aplikovaného výzkumu neželezných kovů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

International Journal of Materials Research

ISSN

1862-5282

e-ISSN

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Svazek periodika

100

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000264870600002

EID výsledku v databázi Scopus

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