Electron Microstructure Study of an Iron-Nickel Base Heat-Resistant Alloy Containing Cobalt

G. Maniar; H. James

doi:10.1520/STP41825S

SYMPOSIA PAPER Published: 01 January 1968

STP41825S

Electron Microstructure Study of an Iron-Nickel Base Heat-Resistant Alloy Containing Cobalt

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An electron microstructure study was carried out to understand the precipitation behavior of age-hardening gamma-prime in an iron-nickel base high temperature alloy, Pyromet 860, containing 4 weight per cent cobalt. Carbon extraction replica and thin foil transmission electron microscopy were used. The extraction replica study showed gamma-prime to have many random orientations in addition to some preferred orientation. The thin film microscopy did not show any contrast effect due to coherency strains and confirmed many orientations of gamma-prime precipitates.

Author Information

Maniar, G., N.

Applied Physics Section of the Research Laboratory, The Carpenter Steel Co., Reading, Pa.

James, H., M.

Applied Physics Section of the Research Laboratory, The Carpenter Steel Co., Reading, Pa.

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Details

Developed by Committee: E04

Pages: 262–272

DOI: 10.1520/STP41825S

ISBN-EB: 978-0-8031-6027-9

ISBN-13: 978-0-8031-6181-8

Electron Microstructure Study of an Iron-Nickel Base Heat-Resistant Alloy Containing Cobalt

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