SANS investigation of ?´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F10%3A%230000223" target="_blank" >RIV/26316919:_____/10:#0000223 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

SANS investigation of ?´ precipitate morphology evolution in creep exposed single crystal nickel base superalloy

Original language description

In order to assess the material degradation of exposed gas-turbine high-temperature components, the creep degraded CMSX-4 single-crystal nickel-base superalloy of two axial orientations [001] and [111] was investigated. 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 ?' 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

—

Type

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

CEP classification

JG - Metallurgy, metal materials

OECD FORD branch

—

Project

—

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

1662-9752

e-ISSN

—

Volume of the periodical

636-637

Issue of the periodical within the volume

January

Country of publishing house

CH - SWITZERLAND

Number of pages

8

Pages from-to

—

UT code for WoS article

—

EID of the result in the Scopus database

—