Atom Probe Investigation of Ruthenium Distributions around Rhenium, Molybdenum and Tungsten in a Gamma Phase of 5th-Generation Nickel-Base Single-Crystal Superalloys

Tomonori Kitashima; Hiroshi Harada; De-Hai Ping; Toshiharu Kobayashi

doi:10.2320/matertrans.48.566

Tomonori Kitashima, Hiroshi Harada, De-Hai Ping, Toshiharu Kobayashi

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Keywords: nickel alloys, ruthenium, three-dimensional atom probe, elemental distribution, short range ordering

JOURNAL FREE ACCESS

2007 Volume 48 Issue 3 Pages 566-569

DOI https://doi.org/10.2320/matertrans.48.566

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Abstract

The three-dimensional atom-probe microanalysis was performed to investigate Ru distributions around Re, Mo and W in the γ phase of a fifth-generation nickel-base single crystal superalloys. Ru-concentration-frequency distributions within Re-, Mo- and W-centered spheres of 100 atoms in the γ phase were analyzed. Any concentration deviation of Ru around Re, Mo and W were not detected under the condition employed in the present study.

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