Boundary in {gamma}{double_prime} precipitates in Inconel 718 nickel-base superalloy

Journal Article · Fri Dec 01 00:00:00 EST 1995 · Acta Metallurgica et Materialia

DOI:https://doi.org/10.1016/0956-7151(95)00124-E· OSTI ID:178007

He, J; Tang, X Y ^[1]; Fukuyama, S; Yokogawa, K ^[2]

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1. Tsinghua Univ., Beijing (China). Dept. of Materials Science and Engineering
2. Chugoku National Industrial Research Inst., Kure, Hiroshima (Japan)

The coalesced {gamma}{double_prime} precipitate in the aged nickel-base superalloy has been investigated using a high resolution electron microscopy. The encounter of {gamma}{double_prime} precipitates during aging formed the coalesced precipitate that consists of several domains which keep the original orientation before encountering. The thickness of boundary in the coalesced {gamma}{double_prime} precipitate was in the range of zero to a few atom layers.

• Sponsoring Organization: USDOE
• OSTI ID: 178007
• Journal Information: Acta Metallurgica et Materialia, Vol. 43, Issue 12; Other Information: PBD: Dec 1995
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
INCONEL 718
MICROSTRUCTURE
PARTICULATES
TRANSMISSION ELECTRON MICROSCOPY
CHEMICAL COMPOSITION
SAMPLE PREPARATION
AGING
PRECIPITATION
FCC LATTICES
HABIT PLANES
MORPHOLOGY
ORIENTATION
SHAPE