Using small punch testing method for the analysis of creep behaviour of Al-Al4C3 composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F10%3A00354339" target="_blank" >RIV/68081723:_____/10:00354339 - 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

Using small punch testing method for the analysis of creep behaviour of Al-Al4C3 composites

Popis výsledku v původním jazyce

Mechanical alloying and mechanical attrition are both processes based on the imparting of a severe plastic deformation using high-energy ball mills. The experimental material, dispersion strengthened aluminium with Al4C3 particles, was prepared by mechanical alloying of aluminium powder (<50 ?m) with different types of carbon. Creep behaviour of the composite, based on aluminium matrix, reinforced by 4 vol% Al4C3, was studied at temperatures from 623 to 723 K by small punch testing with a constant force. The time dependence of the central deflection was registered and the minimum deflection rate was determined. The dependence of this quantity on the applied force can be described by a power function with relatively high value of the power. The dependence can be rationalized by an analysis in terms of the threshold concept. Analytical procedure for comparison of the threshold force in small punch experiments and threshold stress in conventional creep testing are given.

Název v anglickém jazyce

Using small punch testing method for the analysis of creep behaviour of Al-Al4C3 composites

Popis výsledku anglicky

Mechanical alloying and mechanical attrition are both processes based on the imparting of a severe plastic deformation using high-energy ball mills. The experimental material, dispersion strengthened aluminium with Al4C3 particles, was prepared by mechanical alloying of aluminium powder (<50 ?m) with different types of carbon. Creep behaviour of the composite, based on aluminium matrix, reinforced by 4 vol% Al4C3, was studied at temperatures from 623 to 723 K by small punch testing with a constant force. The time dependence of the central deflection was registered and the minimum deflection rate was determined. The dependence of this quantity on the applied force can be described by a power function with relatively high value of the power. The dependence can be rationalized by an analysis in terms of the threshold concept. Analytical procedure for comparison of the threshold force in small punch experiments and threshold stress in conventional creep testing are given.

Druh

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

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Estonian Journal of Engineering

ISSN

1736-6038

e-ISSN

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Svazek periodika

16

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

EE - Estonská republika

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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