High temperature stability of Cr-carbides in an experimental Co Re-based alloy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F10%3A00346618" target="_blank" >RIV/61389005:_____/10:00346618 - isvavai.cz</a>

Alternative codes found

RIV/26722445:_____/10:#0000561

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

High temperature stability of Cr-carbides in an experimental Co Re-based alloy

Original language description

The stability of the microstructure at high temperatures was studied in an experimental Co Re-based alloy. The experimental alloy is mainly strengthened by Cr-carbides, particularly by those in the form of thin lamellar plates. Electron microscopic investigation on samples exposed for up to 1000 h to temperatures of 1000 and 1200 degrees C showed that Cr23C6 type carbides present in the alloy in different morphologies are unstable at these temperatures. It was also observed that the alloy hardness dropped after exposing the samples to elevated temperatures and much of this loss occurred within the first 100 h. In-situ diffraction measurements with synchrotron radiation showed that carbide dissolution started as early as 3 11 of holding at 1000 degreesC. Moreover, in-situ small angle neutron scattering results indicated that the carbides at the grain boundaries and the blocky carbides dissolve first and then the thin lamellar carbides.

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

BG - Nuclear, atomic and molecular physics, accelerators

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

International Journal of Materials Research

ISSN

1862-5282

e-ISSN

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Volume of the periodical

101

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

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UT code for WoS article

000276612700003

EID of the result in the Scopus database

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