Microstructure of a Cast Age-Hardenable Nickel-Chromium Alloy

R. Decker; C. Bieber

doi:10.1520/STP43671S

SYMPOSIA PAPER Published: 01 January 1960

STP43671S

Microstructure of a Cast Age-Hardenable Nickel-Chromium Alloy

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The effect of heat treatments at 2150 and 2225 F on the microstructure of a cast age-hardenable nickel-chromium alloy was studied. Both heat treatments dissolved the coarse gamma prime precipitate of the as-cast condition. This phase then precipitated in a fine dispersion during air cooling from 2150 and 2225 F. The 2225 F treatment dissolved an MC carbide. During creep tests following this treatment, a heavy agglomerate embrittled the grain boundaries. This appeared to be high-carbon gamma prime which derived from the prior solution of MC at 2225 F.

Author Information

Decker, R., F.

The International Nickel Co., Inc., Bayonne, N. J.

Bieber, C., G.

The International Nickel Co., Inc., Bayonne, N. J.

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Details

Developed by Committee: E04

Pages: 120–128

DOI: 10.1520/STP43671S

ISBN-EB: 978-0-8031-5954-9

ISBN-13: 978-0-8031-6108-5

Microstructure of a Cast Age-Hardenable Nickel-Chromium Alloy

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