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Erschienen in: Metallurgical and Materials Transactions A 9/2012

01.09.2012

Resistivity and Transmission Electron Microscopy Investigations of Ordering Transformation in Stoichiometric Ni2(Cr0.5Mo0.5) Alloy

verfasst von: A. Verma, Jung B. Singh, M. Sundararaman, Nelia Wanderka

Erschienen in: Metallurgical and Materials Transactions A | Ausgabe 9/2012

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Abstract

The evolution of long-range order (LRO) from short-range order (SRO) and vice versa was studied by combining resistivity measurement and transmission electron microscopy (TEM) investigations on solution-treated samples of composition Ni2(Cr0.5Mo0.5). The progress of microstructural evolution during the isochronal run for the resistivity measurement was followed. The measured variation in the intensity of superlattice spots during SRO to LRO transition was correlated with the resistivity profile obtained during the isochronal run. The reappearance of SRO was observed after the disappearance of LRO. The isothermal transformation temperature for the appearance of the long-range ordered state, the beginning of disappearance of the long-range ordered state, and the reappearance of the short-range ordered state in the solution-treated sample were determined from the resistivity curves obtained for different heating rates. The resistivity profile was qualitatively explained on the basis of ordering and clustering of solute atoms associated with the formation of different ordered phases obtained from microscopic evidence.

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Fußnoten
1
HASTELLOY and HAYNES are trademarks of Stoody Deloro Stellite, Inc., Industry, CA.
 
2
NIMONIC is a trademark of INCO Alloys International, Inc., Huntington, WV.
 
3
JEOL is a trademark of Japan Electron Optics Ltd., Tokyo.
 
4
PHILIPS is a trademark of FEI Company, Hillsboro, OR.
 
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Metadaten
Titel
Resistivity and Transmission Electron Microscopy Investigations of Ordering Transformation in Stoichiometric Ni2(Cr0.5Mo0.5) Alloy
verfasst von
A. Verma
Jung B. Singh
M. Sundararaman
Nelia Wanderka
Publikationsdatum
01.09.2012
Verlag
Springer US
Erschienen in
Metallurgical and Materials Transactions A / Ausgabe 9/2012
Print ISSN: 1073-5623
Elektronische ISSN: 1543-1940
DOI
https://doi.org/10.1007/s11661-012-1145-1

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