The Effect of Carbon Additions on the Creep Resistance of Fe-25Al-5Zr Alloy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F16%3A00465426" target="_blank" >RIV/68081723:_____/16:00465426 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24210/16:00000540 RIV/00216208:11320/16:10335204

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11661-016-3770-6" target="_blank" >http://dx.doi.org/10.1007/s11661-016-3770-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11661-016-3770-6" target="_blank" >10.1007/s11661-016-3770-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Effect of Carbon Additions on the Creep Resistance of Fe-25Al-5Zr Alloy

Popis výsledku v původním jazyce

Creep experiments were conducted on Fe-25 at. pct Al-5 at. pct Zr alloy with carbon additions at the temperatures of 973 K and 1173 K (700 C and 900 C). The alloys were tested in two different states: (i) cast and (ii) annealed at 1273 K (1000 C) for 50 hours. Stress exponents and activation energies were estimated. The values of the stress exponent n could be explained by the dislocation motion controlled by climb. The increased values of n in the high-carbon alloy at the temperature of 1173 K (900 C) can be described by means of the threshold stress concept. The creep resistance at 973 K (700 C) decreased with the increasing content of carbon. This result is discussed in terms of the ratio of zirconium to carbon in the alloy. An increase of the creep resistance with increasing ratio Zr:C is in agreement with the behavior observed previously in alloys with substantially lower concentrations of zirconium.

Název v anglickém jazyce

The Effect of Carbon Additions on the Creep Resistance of Fe-25Al-5Zr Alloy

Popis výsledku anglicky

Creep experiments were conducted on Fe-25 at. pct Al-5 at. pct Zr alloy with carbon additions at the temperatures of 973 K and 1173 K (700 C and 900 C). The alloys were tested in two different states: (i) cast and (ii) annealed at 1273 K (1000 C) for 50 hours. Stress exponents and activation energies were estimated. The values of the stress exponent n could be explained by the dislocation motion controlled by climb. The increased values of n in the high-carbon alloy at the temperature of 1173 K (900 C) can be described by means of the threshold stress concept. The creep resistance at 973 K (700 C) decreased with the increasing content of carbon. This result is discussed in terms of the ratio of zirconium to carbon in the alloy. An increase of the creep resistance with increasing ratio Zr:C is in agreement with the behavior observed previously in alloys with substantially lower concentrations of zirconium.

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Metallurgical and Materials Transactions A

ISSN

1073-5623

e-ISSN

—

Svazek periodika

47A

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

6070-6076

Kód UT WoS článku

000387856000047

EID výsledku v databázi Scopus

2-s2.0-84988664249