Creep behaviour and life assessment of a cast nickel base superalloy MAR-M247
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F19%3A00508210" target="_blank" >RIV/68081723:_____/19:00508210 - isvavai.cz</a>
Result on the web
<a href="https://www.degruyter.com/downloadpdf/j/htmp.2019.38.issue-2019/htmp-2019-0006/htmp-2019-0006.pdf" target="_blank" >https://www.degruyter.com/downloadpdf/j/htmp.2019.38.issue-2019/htmp-2019-0006/htmp-2019-0006.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/htmp-2019-0006" target="_blank" >10.1515/htmp-2019-0006</a>
Alternative languages
Result language
angličtina
Original language name
Creep behaviour and life assessment of a cast nickel base superalloy MAR-M247
Original language description
The cast nickel-base MAR-M247 superalloy has been widely used for high-temperature components. In this work, the creep behaviour of two alternates of MAR-M247 superalloy with different grain size processed at different temperatures of casting are compared. Under the creep testing conditions used in this study, only negligible differences of creep behaviour of the alternate alloys were found and the evaluated creep characteristics correspond to the power-law or dislocation creep. The microstructure of the alloys consists of a gamma matrix with a eutectic, gamma' strengthening cubic precipitates, and M6C and M23C6 carbides. Increasing the temperature induces the dissolution of some M23C6 carbides. Fractures of both variants of alloys exhibit a more ductile character at higher temperatures, while at lower temperature a mixture of brittle and ductile fracture modes was observed, which changes the creep fracture ductility.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
High Temperature Materials and Processes
ISSN
0334-6455
e-ISSN
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Volume of the periodical
38
Issue of the periodical within the volume
JAN
Country of publishing house
DE - GERMANY
Number of pages
11
Pages from-to
590-600
UT code for WoS article
000468929500001
EID of the result in the Scopus database
2-s2.0-85067555279