A magnetron sputtered microcrystalline β-NiAl coating for SC superalloys. Part I. Characterization and comparison of isothermal oxidation behavior at 1100°C with a NiCrAlY coating

Hou, S.; Zhu, Shenglong; Zhang, Tao; Wang, Fuhui

doi:10.1016/j.apsusc.2014.10.106

Cited by 43 publications

(7 citation statements)

References 47 publications

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“…Nickel-aluminide type coatings, such as Ni 2 Al 3 , NiAl, and Ni 3 Al, are widely used for protecting the nickel-base superalloy against high-temperature oxidation [1][2][3] or carburization [4]. Further, the nickel-aluminide coatings can also protect other metal substrates with different preparation methods.…”

Section: Introductionmentioning

confidence: 99%

“…Further, the nickel-aluminide coatings can also protect other metal substrates with different preparation methods. For example, the SHS (self-propagating high-temperature synthesis) casting route can prepare a Ni 3 Al coating to protect carbon steel [5], a plasma-sprayed Ni 3 Al coating can protect boiler tube steels [6,7], a mechanical alloying to format nanostructure NiAl can defend carbon steel [8], and a two-step process to make nickel aluminide/nickel hybrid coatings can shield alloy steel [9] or TiAl alloy [10]. Compared to the other methods mentioned above, the two-step process can aluminize at low temperature by pack aluminization of preliminarily nickel-coated samples [9].…”

Section: Introductionmentioning

confidence: 99%

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Composition Distribution and Electrochemical Behavior of an Ni2Al3 Coating on Q235 Steel

Wang

Zheng

et al. 2016

Metals

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An Ni 2 Al 3 coating was prepared via the electrodeposition of nickel followed by pack aluminization. Polarization curve and electrochemical impedance spectroscopy were performed to study the room temperature corrosion behavior of the coating in a 3.5 wt. % NaCl solution. The long-term impedance of the coating was also investigated after immersion for 30 days. Results show that the Ni 2 Al 3 coating possessed lower corrosion current density (I corr ) and higher polarization resistance (R p ) than the substrate in the solution. The Bode plots of the coating showed two time constants after the long-term immersion. Pitting corrosion was found on the coating surface.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Composition Distribution and Electrochemical Behavior of an Ni2Al3 Coating on Q235 Steel

Wang

Zheng

et al. 2016

Metals

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“…As shown in Figure 4(b), the metastable θ-Al 2 O 3 with needle-like crystal structure was found on the surface after 200 h of oxidation, indicating the spalling of the preformed oxides scale. The fresh surface entered a new stage of oxidation, since the θ-Al 2 O 3 was only found in the transient stage of oxidation [23]. From the cross-section of Figure 4(c), it can be seen that the oxides scale was mainly composed of α-Al 2 O 3 with irregularly distributed (Y, Ta)-rich oxides.…”

Section: Resultsmentioning

confidence: 99%

Growth stress and interdiffusion analysis of NiCoCrAlYTa coating during oxidation

Yang

Zou

Shi

et al. 2020

Surface Engineering

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The NiCoCrAlYTa coating deposited on Ni-based superalloy using arc ion plating (AIP) technology was subjected to isothermal oxidation in air at 1050°C for up to 200 h. The microstructure, oxides scale thickness, growth stress and interface diffusion behaviour were characterized by using scanning electron microscopy, X-ray diffraction, electron probe microanalyser and photo-stimulated luminescence piezo-spectroscopy. The results revealed that the microstructure of oxides scale was predominantly composed of α-Al 2 O 3 with (Y, Ta)-rich oxides and Cr 2 O 3 irregularly distributed during the oxidation process. The oxides scale thickness of NiCoCrAlYTa coating conformed to parabolic law, which indicated the coating had good oxidation resistance. Also, the relationship between the thickness and growth stress, as well as the oxidation time, was studied based on the Clark oxidation theory and Wagner oxidation model, developing a methodology to measure the high-temperature stress in NiCoCrAlYTa coating. The theoretical calculation value of the stress was basically consistent with the value of the experiment, which could effectively predict the growth stress in the coating and help understand the failure mechanism of NiCoCrAlYTa coating during the service life. In the oxidation process, the interdiffusion behaviour occurred at the interface between the oxides scale and the NiCoCrAlYTa coating was also discussed. The diffusion coefficient of typical elements was calculated by using Boltzmann-Matano method, which was helpful to analyse the inner oxidation of the NiCoCrAlYTa coating, providing indepth understanding of the oxidation behaviour.

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“…NiAl intermetallic compounds have low density, good oxidation resistance, and excellent high-temperature strength [1]. Under specific conditions, a series intermetallic compounds can be formed between metal Ni and Al, including NiAl 3 , Ni 2 Al 3 , NiAl, and Ni 3 Al [2,3].…”

Section: Introductionmentioning

confidence: 99%

The Preparation and Properties of Ni2Al3 Intermetallic Compound Coating

Liu,

Jie,

et al. 2023

Coatings

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In this work, a Ni2Al3 intermetallic compound coating was prepared on 45 # steel by combining methods of low-pressure cold spray and heat treatment. Firstly, powders mixed with Ni powders, Al powders, and Al2O3 powders as a mass ratio of 20:6:4 were sprayed on surface of 45 # steel by low-pressure cold spraying technology to prepare a Ni-Al pre-coating. Subsequently, the pre-coating was annealed at 570 °C in an argon atmosphere for 12 h to obtain the Ni2Al3 intermetallic compound coating. The composite coating was characterized using TEM, SEM, and XRD. High temperature oxidation performance of the composite coating was analyzed by isothermal oxidation tests conducted at 600 °C in air atmosphere for 96 h. The results show that the composite coating is composed of Ni2Al3 phase. Under a high-temperature oxidation environment, a protective oxide film composed by Al2O3 and NiO was formed on the coating surface, which resulting in a superior high-temperature oxidation resistance compared to 15CrMo heat-resistant steel. The mechanism of the Ni2Al3 coating resistance to high-temperature oxidation is that an oxide film mainly composed of Al2O3 and NiO formed on the surface during the high-temperature oxidation process; this oxide film can effectively resist oxidation and protect the substrate material from oxidation at a high temperature of 600 °C.

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A magnetron sputtered microcrystalline β-NiAl coating for SC superalloys. Part I. Characterization and comparison of isothermal oxidation behavior at 1100°C with a NiCrAlY coating

Cited by 43 publications

References 47 publications

Composition Distribution and Electrochemical Behavior of an Ni2Al3 Coating on Q235 Steel

Composition Distribution and Electrochemical Behavior of an Ni2Al3 Coating on Q235 Steel

Growth stress and interdiffusion analysis of NiCoCrAlYTa coating during oxidation

The Preparation and Properties of Ni2Al3 Intermetallic Compound Coating

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