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
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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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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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
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e-ISSN
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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
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