The effect of Zr addition on creep of Fe-30 at.% Al alloys

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10192553" target="_blank" >RIV/00216208:11320/13:10192553 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/13:00398580

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.intermet.2013.07.017" target="_blank" >http://dx.doi.org/10.1016/j.intermet.2013.07.017</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.intermet.2013.07.017" target="_blank" >10.1016/j.intermet.2013.07.017</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of Zr addition on creep of Fe-30 at.% Al alloys

Popis výsledku v původním jazyce

Compressive creep of alloys based on Fe-30 at.% Al with zirconium additions in the range of 0.4-5.2 at.% was studied at temperatures from 650 to 900 degrees C. The alloys were tested in two different states: (i) cast and (ii) annealed at 1000 degrees C for 50 h. Stress exponents and activation energies were estimated. The values of the stress exponent n can be explained by dislocation motion controlled by climb and by the presence of second-phase particles. Higher stress exponents were detected only atthe temperature of 900 degrees C and with zirconium content of up to 2%. Creep resistance at temperatures of 700 and 900 degrees C increases with the increasing amounts of the secondary phases lambda(1) and tau(1). At the temperature of 650 degrees C, creep resistance is given not only by the volume fraction of particles but also by the ratio of tau(1)/lambda(1). This can be attributed to a more effective strengthening by particles of tau(1) resulting either from their mechanical propert

Název v anglickém jazyce

The effect of Zr addition on creep of Fe-30 at.% Al alloys

Popis výsledku anglicky

Compressive creep of alloys based on Fe-30 at.% Al with zirconium additions in the range of 0.4-5.2 at.% was studied at temperatures from 650 to 900 degrees C. The alloys were tested in two different states: (i) cast and (ii) annealed at 1000 degrees C for 50 h. Stress exponents and activation energies were estimated. The values of the stress exponent n can be explained by dislocation motion controlled by climb and by the presence of second-phase particles. Higher stress exponents were detected only atthe temperature of 900 degrees C and with zirconium content of up to 2%. Creep resistance at temperatures of 700 and 900 degrees C increases with the increasing amounts of the secondary phases lambda(1) and tau(1). At the temperature of 650 degrees C, creep resistance is given not only by the volume fraction of particles but also by the ratio of tau(1)/lambda(1). This can be attributed to a more effective strengthening by particles of tau(1) resulting either from their mechanical propert

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/GAP108%2F12%2F1452" target="_blank" >GAP108/12/1452: Optimalizace vysokoteplotních mechanických vlastností aluminidů železa typu Fe3Al s karbidotvornými prvky</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

Intermetallics

ISSN

0966-9795

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

5

Strana od-do

142-146

Kód UT WoS článku

000325675500020

EID výsledku v databázi Scopus

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