publication . Article . 2017

Rhodium and Hafnium Influence on the Microstructure, Phase Composition, and Oxidation Resistance of Aluminide Coatings

Jan Sieniawski;
Open Access
  • Published: 01 Dec 2017 Journal: Metals, volume 7, page 548 (eissn: 2075-4701, Copyright policy)
  • Publisher: MDPI AG
Abstract
A 0.5 μm thick layer of rhodium was deposited on the CMSX 4 superalloy by the electroplating method. The rhodium-coated superalloy was hafnized and aluminized or only aluminized using the Chemical vapour deposition method. A comparison was made of the microstructure, phase composition, and oxidation resistance of three aluminide coatings: nonmodified (a), rhodium-modified (b), and rhodium- and hafnium-modified (c). All three coatings consisted of two layers: the additive layer and the interdiffusion layer. Rhodium-doped (rhodium- and hafnium-doped) β-NiAl phase was found in the additive layer of the rhodium-modified (rhodium- and hafnium-modified) aluminide coat...
Subjects
free text keywords: rhodium, hafnium, aluminide coating, CMSX 4 superalloy, oxidation, Mining engineering. Metallurgy, TN1-997
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27 references, page 1 of 2

Manuf. Technol. 2012, 62, 83-88. [CrossRef]

electrodeposition from DMSO2-based electrolyte and subsequent annealing. Mater. Trans. 2011, 52, 1216-1221.

superalloy at 900 C. Int. J. Electrochem. Sci. 2015, 10, 1873-1882.

superalloy CM186LC between 900 C and 1100 C in air. J. Ind. Eng. Chem. 2013, 19, 1926-1932. [CrossRef]

aluminide coatings on Ni-base superalloy. Surf. Coat. Technol. 2009, 203, 2337-2342. [CrossRef]

X at 1100 C. Surf. Coat. Technol. 2006, 201, 3867-3871. [CrossRef]

superalloys. Surf. Coat. Technol. 2004, 182, 14-23. [CrossRef]

with single-phase platinum aluminide. Surf. Coat. Technol. 2001, 146-147, 1-6. [CrossRef]

9. Wang, Y.; Sayre, G. Synthesis of simple and platinum-modified aluminide coatings on cobalt (Co)-base superalloys via a vapor phase aluminizing process. Surf. Coat. Technol. 2008, 203, 256-263. [CrossRef]

10. Zagula-Yavorska, M.; Sieniawski, J. Microstructural study on oxidation resistance of nonmodified and platinum modified aluminide coating. J. Mater. Eng. Perform. 2014, 23, 918-926. [CrossRef]

11. Pedraza, F.; Kennedy, A.D.; Koperek, J.; Moretto, P. Investigation of the microstructure of platinum-modified aluminide coatings. Surf. Coat. Technol. 2006, 200, 4032-4039. [CrossRef]

12. Gleeson, B.; Mu, N.; Hayashi, S. Compositional factors affecting the establishment and maintenance of Al2O3 scales on Ni-Al-Pt systems. J. Mater. Sci. 2009, 4, 1704-1710. [CrossRef]

13. Koul, A.; Immarigeon, J.; Dainty, R.; Patnaik, P. Degradation of Advanced Aero Engine Turbine Blades; ASM International, Materials Park: Geauga County, OH, USA, 1994; Volume 12, p. 69.

14. Haynes, J.A.; Zhang, Y.; Lee, W.Y. Elevated Temperature Coatings: Science and Technology III; TMS: Warrendale, PA, USA, 1999; pp. 185-196.

15. Schneider, K.; Arnim, H.; Grünling, H.W. Influence of coatings and hot corrosion on the fatigue behaviour of nickel-based superalloys. Thin Solid Films 1981, 84, 29-36. [CrossRef]

27 references, page 1 of 2
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