SANS Investigation of Gamma Prime Precipitate Morphology Evolution in Creep Exposed Single Crystal Ni Base Superalloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F10%3A00165954" target="_blank" >RIV/68407700:21340/10:00165954 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

SANS Investigation of Gamma Prime Precipitate Morphology Evolution in Creep Exposed Single Crystal Ni Base Superalloy

Original language description

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 250-780MPa/750 - 50°C resulting in rupture time variation from 50 to 4000 hours. A combination of scanning elektron microscopy (SEM) and non-destructive small-angle neutron scattering method (SANS) was used to investigate the directional coarsening (rafting) ofthe 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 axialorientation of specimen, the creep parameters and the mechanical properties.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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

Name of the periodical

Materials Science Forum

ISSN

0255-5476

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

636-637

Country of publishing house

CH - SWITZERLAND

Number of pages

8

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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