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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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

  • 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