Investigation of microstructural changes in INCONEL 706 at high temperatures by In-situ small-angle neutron scattering

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F03%3A00105612" target="_blank" >RIV/61389005:_____/03:00105612 - 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

Investigation of microstructural changes in INCONEL 706 at high temperatures by In-situ small-angle neutron scattering

Original language description

The Ni-Fe based superalloy INCONEL 706 (IN706) has a complex microstructure and many A(3)B type phases, e.g., Ni3Al gamma', Ni3Nb gamma', Ni3Nb delta, or Ni3Ti eta precipitates can form. The various precipitates can also have different morphologies, i.e., plate, needle, cube, or disc shape, and some of them exist as co-precipitates-gamma'/gamma''. In the present study, in-situ measurements by small-angle neutron scattering (SANS) were performed to monitor the microstructural evolution at elevated temperatures. The SANS measurements were complemented by microstructural observations at room temperature by scanning electron microscopy and transmission electron microscopy (SEM and TEM). It is demonstrated that eta plates and gamma'' needles form directly at high temperatures. Cooling from high temperature produces fine dispersions of gamma'/gamma'' precipitates, which coarsen on reheating to lower stabilization temperatures (893 and 993 K). The final morphology of the gamma'/gamma'' co-...

Czech name

Studium změn mikrostruktury INCONEL706 při vysokých teplotách pomocí

Czech description

Bylo provedeno in-situ monitorování vývoje mikrostruktury precipitátů v superslitině pomocí maloúhlového rozptylu neutronů. Bylo ukázáno, že fáze eta a gamma' se vznikají při vysokých teplotách přímo z matrice.

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

<a href="/en/project/GA106%2F02%2F0557" target="_blank" >GA106/02/0557: Microstructural characterization of neutron irradiation induced damage to RPV steels</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Name of the periodical

Metallurgical and Materials Transactions

ISSN

1073-5623

e-ISSN

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Volume of the periodical

34A

Issue of the periodical within the volume

12

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

2781-2792

UT code for WoS article

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EID of the result in the Scopus database

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