Influence of topologically closed packed phase formation on creep rupture life of directionally solidified nickel-base superalloys

Volek A, Singer R, Bürgel R, Grossmann J, Wang Y (2006)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2006

Journal

Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science ASM International

Book Volume: 37

Pages Range: 405-410

Journal Issue: 2

DOI: 10.1007/s11661-006-0011-4

Abstract

Several experimental superalloy compositions based on the alloy IN792 were investigated. Creep rupture properties were measured and microstructures in the as-heat-treated condition and after creep rupture testing were evaluated. Two types of topologically closed packed (TCP) phases have been observed. Type 1 occurs in alloys with increased additions of the γ′-formers Al and Ta and shows detrimental effects on creep rupture life. Type 2 precipitates in Re-containing alloys are much smaller in size and volume fraction than type 1 and are found not to influence the creep rupture properties. The different effect of type 1 and 2 TCP phases can be rationalized in terms of the amount of precipitate and the resulting matrix depletion of solid solution strengtheners.

Authors with CRIS profile

Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM)

Related research project(s)

Activity Development of high temperature alloys Jan. 1, 1990 - Jan. 1, 1993

Involved external institutions

Universität Osnabrück DE Germany (DE) Technische Universität Darmstadt DE Germany (DE)

How to cite

APA:

Volek, A., Singer, R., Bürgel, R., Grossmann, J., & Wang, Y. (2006). Influence of topologically closed packed phase formation on creep rupture life of directionally solidified nickel-base superalloys. Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science, 37(2), 405-410. https://doi.org/10.1007/s11661-006-0011-4

MLA:

Volek, Andreas, et al. "Influence of topologically closed packed phase formation on creep rupture life of directionally solidified nickel-base superalloys." Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science 37.2 (2006): 405-410.

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