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Investigation of gamma prime precipitate morphology development in creep exposed nickel base superalloy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F12%3A%230000369" target="_blank" >RIV/26316919:_____/12:#0000369 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.metal2012.com/files/proceedings/02/reports/370.pdf" target="_blank" >http://www.metal2012.com/files/proceedings/02/reports/370.pdf</a>

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Investigation of gamma prime precipitate morphology development in creep exposed nickel base superalloy

  • Original language description

    Nickel base superalloys are widely used for heavy duty gas turbine buckets, where stability of microstructure is an important factor The creep degraded nickel base single crystal superalloy CMSX-4 of two axial orientations [001] and [111] was investigated with aim to assess the structure degradation. Constant load creep tests were conducted in the stress/temperature ranges of 250 ? 780 MPa / 750 ? 950°C resulting in rupture time variation from 50 to 4000 hours. A combination of scanning electron microscopy (SEM) and non-destructive small-angle neutron scattering method (SANS) was used to investigate the directional coarsening (rafting) of the gamma prime (?') precipitates in relation to the stress and temperature applied as well as to the initial crystallographic orientation of the specimens. The SANS results are discussed in terms of the correlation with the raft development, the axial orientation of specimen, the creep parameters and the mechanical properties.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JG - Metallurgy, metal materials

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/FR-TI1%2F415" target="_blank" >FR-TI1/415: *Research and development of nanostructured materials for medical applications</a><br>

  • Continuities

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

Others

  • Publication year

    2012

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    METAL 2012

  • ISBN

    978-80-87294-31-4

  • ISSN

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

    1264-1270

  • Publisher name

    TANGER Ltd.

  • Place of publication

    Ostrava, CZ

  • Event location

    Brno,CZ

  • Event date

    May 23, 2012

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article