Isothermal Oxidation Behavior of Ru Modified Aluminide Coating on a Fourth Generation Single Crystal Superalloy

Yuki Matsuoka; Kazuyoshi Chikugo; Takakazu Suzuki; Yasuo Matsunaga; Shigeji Taniguchi

doi:10.4028/www.scientific.net/MSF.512.111

Paper Titles

EBSD and TEM Characterization of Ultrafine Grained High Purity Aluminum Produced by Accumulative Roll-Bonding
p.91

Acetate and Chloride Effects on Hydrogen Production across Crevices
p.97

Process of the One-Dimensional Motion of Small Interstitial-Type Dislocation Loops in Iron
p.103

Effect of Electron Irradiation on Nanocrystallization of Fe-Nd-B Amorphous Alloys
p.107

Isothermal Oxidation Behavior of Ru Modified Aluminide Coating on a Fourth Generation Single Crystal Superalloy
p.111

Variant Selection of Plate Martensite in Fe-28.5at.%Ni Alloy
p.117

Internal Stress Field in Ultrafine Grained Aluminium Fabricated by Accumulative Roll-Bonding
p.123

Tailored Electrochemical Surface Modification of Semiconductors
p.129

Application of Large Magnetocaloric Effects in Itinerant-Electron Metamagnets to Cooling Systems
p.137

HomeMaterials Science ForumMaterials Science Forum Vol. 512Isothermal Oxidation Behavior of Ru Modified...

Isothermal Oxidation Behavior of Ru Modified Aluminide Coating on a Fourth Generation Single Crystal Superalloy

Abstract:

Ru coating prior to aluminizing is one of the effective methods to reduce the harmful intermediate layer that forms under the coating (SRZ) on a 4th generation Ni-base SC superalloy. This study examined the short-term isothermal oxidation behavior of this Ru-modified coating at 1373 K in air. Surface observation by SEM showed that the scale becomes flat and uniform in comparison to simple aluminide coating. XRD and cross-sectional analysis results also showed that phase transformation from β-NiAl to γ’-Ni3Al seldom occurs in the Ru-modified coating layer leading to the prevention of local oxidation.

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Periodical:

Materials Science Forum (Volume 512)

Pages:

111-116

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.512.111

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Online since:

April 2006

Authors:

Yuki Matsuoka, Kazuyoshi Chikugo, Takakazu Suzuki, Yasuo Matsunaga, Shigeji Taniguchi

Keywords:

Alumina Scale, Aluminizing, Isothermal Oxidation, Ni-Base SC Superalloy, Ru Coating, Transformation

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References

[1] H. Harada et al.: Proc. of 2 nd International Symposium on High Temperature Materials 2001 (Tsukuba, Japan 2001), pp.30-31.

Google Scholar

[2] W. S. Walston, J. C. Schaeffer, and W. H. Murphy: Proc. of 9th International Symposium on Superalloys (TMS, Warrendale, PA 1996), pp.9-18.

Google Scholar

[3] J. C. Zhao et al.: Materials for Protection of Substrates at High Temperature, Articles Made therefrom, and Method for Protecting Substrates, U. S. Patent 6, 148, 141, (2003).

Google Scholar

[4] Y. Matsuoka et al.: Proc. of 10th International Symposium on Superalloys (TMS, Champion, PA 2004), pp.637-642.

Google Scholar

[5] G. C. Rybicki and J. L. Smialek: Oxid. Metals. 31 (1989), p.275.

Google Scholar

[6] J. Doychak, T. E. Mitchell, and J. L. Smialek: Proc. Mat. Res. Soc. Symp. 39 (Materials Research Society, Pittsburgh, PA 1988), p.475.

Google Scholar

[7] J. Angenete and K. Stiller: Oxid. Metals. 60, No. 1/2 (2003), p.83.

Google Scholar

[8] F. S. Pettit: Trans. Met, Soc. AIME. Vol. 239 (1967), p.1296.

Google Scholar

[9] M. Reid, M. J. Pomeroy, and J. S. Robinson: Mater. Sci. Forum Vols. 461-464 (2004).

Google Scholar