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

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dc.contributor.authorDobeš, Ferdinand
dc.contributor.authorVodičková, Věra
dc.contributor.authorVeselý, Jozef
dc.contributor.authorKratochvíl, Petr
dc.date.accessioned2017-01-04
dc.date.available2017-01-04
dc.date.issued2016
dc.description.abstractCreep 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. © 2016, The Minerals, Metals & Materials Society and ASM International.en
dc.identifier.doi10.1007/s11661-016-3770-6
dc.identifier.issn1073-5623
dc.identifier.issn1543-1940
dc.identifier.scopus2-s2.0-84988664249
dc.identifier.urihttps://dspace.tul.cz/handle/15240/19451
dc.identifier.urihttps://link.springer.com/article/10.1007%2Fs11661-016-3770-6
dc.relation.ispartofMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
dc.sourceScopus
dc.titleThe Effect of Carbon Additions on the Creep Resistance of Fe-25Al-5Zr Alloyen
dc.typeArticle
local.citation.epage6076
local.citation.spage6070
local.departmentDepartment of Material Scienceen
local.facultyFaculty of Mechanical Engineeringen
local.fulltextyes
local.relation.issue12
local.relation.volume47
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