Abstract
Microstructure of palladium and hafnium co-doped aluminide coatings deposited on pure nickel and CMSX4 nickel super alloy by the CVD method was examined by the SEM and TEM methods. Both coatings have a double layer structure: additive and interdiffusion zones. The additive zone is formed by the hafnium doped β-(Ni,Pd)Al phase. The interdiffusion zone on pure nickel contains the palladium and hafnium doped γ′-Ni3Al phase, whereas that on CMSX-4 superalloy the hafnium doped β-(Ni,Pd)Al phase with precipitations of Topologically Closed-Pack phases (μ and σ) and Al2O3 at adhesive/interdifusion zones interfaces. Palladium is distributed uniformly in whole coatings. Hafnium forms precipitates that are situated in a Hf-rich belt. In both coatings this belt is in the additive layer, near the line of porosity and Al2O3 precipitates. Palladium and hafnium modified aluminide coatings show better oxidation resistance than those modified only with palladium.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
D.B. Miracle, The physical and mechanical properties of Nibal, Acta Metall. Mater. 41 (1993) 649–684.
J.A. Haynes, K.L. More, B.A. Pint, I.G. Wright, K.M. Cooley, K.Y. Zhang, High temperature oxidation performance of aluminide coatings, High Temp. Corros. Protect. Mater. 5 (2000) 35–41.
Y. Wang, G. Sayre, Factors affecting the microstructure of platinum-modified aluminide coatings during a vapor phase aluminizing process, Surf. Coat. Technol. 203 (2009) 1264–1272.
S. Alperine, P. Steinmetz, P. Joso, A. Constantin, High-temperature-resistant palladium-modified aluminide coatings for nickel-baser super alloys, Mater. Sci. Eng.A 121 (1989) 367–372.
J.A. Haynes, Y. Zhang, K.M. Cooley, L. Walker, K.S. Reeves, B. A. Pint, High-temperature diffusion barriers for protective coatings, Surf. Coat. Technol. 189 (2004) 153–157.
D. Li, H. Guo, D. Wang, T. Zhang, S. Gong, X. Hubin, Cyclic oxidation of β-NiAl with various reactive element dopants at 1200 °C, Corros. Sci. 66 (2013) 125–135.
M. Zagula-Yavorska, J. Sieniawski, Microstructural study on oxidation resistance of nonmodified and platinum modified aluminide coating, JMEPEG 23 (2014) 918–926.
S.J. Hong, G.H. Hwang, W.K. Han, S.G. Kang, Cyclic oxidation pf Pt/Pd-modified aluminide coating on a nickel-based superalloy at 1150 °C, Intermetallics 17 (2009) 381–386.
M. Zagula-Yavorska, J. Sieniawski, T. Gancarczyk, Some properties of platinum and palladium modified aluminide coatings deposited by the CVD method on nickel-base superalloys, Arch. Metall. Mater. 57 (2012) 503–509.
B. Ning, M. Shamsuzzoha, M.L. Weaver, Microstructures and properties of coatings, Surf. Coat. Technol. 200 (2005) 1270–1275.
K.A. Unocic, B.A. Pint, Oxidation behavior of co-doped NiCrAl alloys in dry and wet air, Surf. Coat. Technol. 237 (2013) 8–15.
R. Swadźba, M. Hetmańczyk J. Wiederman, L. Swadźba, G. Moskal, B. Witala, K. Radwański, Microstructure degradation of simple Pt and Pt + Pd modified aluminide coatings on CMSX-4 superalloy under cyclic oxidation conditions, Surf. Coat. Technol. 215 (2013) 16–23.
K.A. Unocic, B.A. Pint, Characterization of the alumina scale formed on a commercial MCrAlYHfSi, Surf. Coat. Technol. 205 (2010) 1178–2118.
B.A. Pint, K.L. More, I.G. Wright, Effect of quaternary additions on the oxidation behavior of Hf-doped NiAl, Oxid. Met. 59 (2003) 257–283.
H. Guo, D. Li, L. Zheng, S. Gong, H. Xu, Effect of co-doping of two reactive elements on alumina scale growth of β-NiAl at 1200 °C, Corros. Sci. 88 (2014) 197–208.
J.A. Abys, H.K. Straschil, United States Patent 5178745 (1993).
J.A. Abys, H.S. Trop, United States Patent 4486274 (1985).
B558-79, A Standard practice for preparation of nickel alloys for electroplating (2013).
J. Romanowska, J. Morgiel, M. Zagula-Yavorska, J. Sieniawski, Nanoparticles in hafnium-doped aluminide coatings, Mater. Lett. 145 (2015) 162–166.
M. Zagula-Yavorska, J. Morgiel, J. Romanowska, J. Sieniawski, Microstructure and oxidation behaviour investigation of rhodium modified aluminide coating deposited on CMSX 4 superalloy, J. Microsc. 261 (2016) 320–325.
J. Romanowska, M. Zagula-Yavorska, J. Sieniawski, Zirconium influence on microstructure of aluminide coatings deposited on nickel substrate by CVD method, Bull. Mater. Sci. 36 (2013) 1043–1048.
Q. Fan, H. Yu, T. Wang, Z. Wu, Y. Liu, Preparation and isothermal oxidation behavior of Zr-doped, Pt-modified aluminide coating prepared by a hybrid process, Coatings 8 (2018) 1–12.
Y.F. Yang, C.Y. Jiang, H.R. Yao, Z.B. Bao, S.L. Zhu, F.H. Wang, Preparation and enhanced oxidation performance of a Hf-doped single-phase Pt-modified aluminide coating, Corros. Sci. 113 (2016) 17–25.
S.J. Hong, G.W. Hwang, W.K. Han, S.G. Kang, Cyclic oxidation of Pt/Pd-modified aluminide coating on a nickel-based super alloy at 1150 °C, Intermetallics 17 (2009) 381–386.
H. Meininger, T. Gödeke, M. Ellner, Structural and phase equilibria investigations in the transition metal-rich part of the ternary system Ni–Pd–Al, Z. Metallkd. 90 (1999) 207–215.
R.R. Adharapurapu, J. Zhu, V.S. Dheeradha, D.M. Lipkin, T.M. Pollock, Effective Hf-Pd co-doped β-NiAl(Cr) coatings for single-crystal superalloys, Acta Mater. 76 (2014) 449–462.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Romanowska, J., Morgiel, J., Kolek, Ł. et al. Effect of Pd and Hf co-doping of aluminide coatings on pure nickel and CMSX-4 nickel superalloy. Archiv.Civ.Mech.Eng 18, 1421–1429 (2018). https://doi.org/10.1016/j.acme.2018.05.007
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1016/j.acme.2018.05.007