Results 21 to 30 of about 746,875 (274)

Thermal cyclic resistance and long term inter-diffusion properties of slurry aluminide coatings modified with Si

Results in Surfaces and Interfaces, 2022
High temperature oxidation resistant aluminide coatings fail due to their inability to maintain a protective scale. The corresponding mechanism of protection is based on of forming a thin Al2O3 layer, which depends on the availability of Al at the ...
Alina Agüero, María José Landeira Østergård, Anette N. Hansson, Marcos Gutierrez   +3 more
doaj   +1 more source

Development of hybrid electrodeposition/slurry diffusion aluminide coatings on Ni-based superalloy with enhanced hot corrosion resistance

Journal of Composites and Compounds, 2021
Ni/Co-modified aluminide coatings were prepared on Hastelloy-X superalloy by a combined process of electrodeposition and slurry aluminizing. In this regard, pure layers of Ni and Ni-50wt.%Co were initially applied via electrodeposition process and ...
Ali Zakeri, M. M. Masoumi Balashadehi, A. Sabour Rouh Aghdam   +2 more
semanticscholar   +1 more source

Effect of water vapor content on corrosion performance of aluminide coatings on TP347H in a simulated biomass combustion environment

Journal of Materials Research and Technology, 2022
Large numbers of power plants are taking biomass energy to replace fossil fuels. However, biomass combustion process deposits a substantial amount of potassium chloride in the boiler pipe, which causes high-temperature corrosion.
Duoli Wu, Jiayin Zheng, Su Liu, Haotian Wu, Xinlong Wei, Chao Zhang   +5 more
doaj   +1 more source

Effect of Cycle Frequency on High Temperature Oxidation Behavior of Alumina-forming Coatings Used for Industrial Gas Turbine Blades [PDF]

, 2004
Oxidation kinetics of platinum modified aluminide and overlay coatings on nickel base superalloys were investigated. Isothermal oxidation tests were carried out at 1050°C in synthetic air. Cyclic oxidation tests were performed with 2 cycle frequencies :
Monceau, Daniel, Pieraggi, Bernard, Vialas, Nadia   +2 more
core   +2 more sources

Effect of platinum and pre-oxidation on the hot corrosion behavior of aluminide coating with NaCl at 1050 °C

Materials Research Express, 2020
The hot corrosion behaviors of the aluminide coatings with different treatments on the surface of Ni-based alloy at high temperature were investigated.
Jubo Peng, Taihong Huang, Peng Song, Wenlang Huang, Yang He, Tao Ma, Bixiao Yang, Yuwei Liang, Minxuan Wu, Rong Chen   +9 more
doaj   +1 more source

The new concept of thermal barrier coatings with Pt + Pd/Zr/Hf-modified aluminide bond coat and ceramic layer formed by PS-PVD method

High Temperature Materials and Processes, 2021
Thermal barrier coatings (TBCs) are widely used for protection of gas turbine parts from high temperature and corrosion. In the present study, the new concept of TBCs with three-element-modified aluminide coatings was presented.
Góral Marek, Pytel Maciej, Kubaszek Tadeusz, Drajewicz Marcin, Simka Wojciech, Nieużyła Łukasz   +5 more
doaj   +1 more source

Pt-modified Ni aluminides, MCrAlY-base multilayer coatings and TBC systems fabricated by Spark Plasma Sintering for the protection of Ni-base superalloys [PDF]

, 2009
Pt-modified Ni aluminides and MCrAlY coatings (where M=Ni and/or Co) are widely used on turbine blades and vanes for protection against oxidation and corrosion and as bond coatings in thermal barrier coating (TBC) systems.
Boidot, Mathieu, Cadoret, Yannick, Estournès, Claude, Monceau, Daniel, Oquab, Djar, Selezneff, Serge, Thébault, Yannick   +6 more
core   +2 more sources

High Temperature Oxidation Behavior of Nano-Alumina–Modified NiAl Coating

Frontiers in Materials, 2022
In this article, the nickel aluminide coating prepared by the chemical vapor deposition method has adhered deliberately with nano-alumina film on the surface by the electrophoresis method.
Yuqing Fang, Yuqing Fang, Xiaoyong Shu, Xiaoyong Shu, Shuhe Dong, Shuhe Dong   +5 more
doaj   +1 more source

Mechanisms of High Temperature Degradation of Thermal Barrier Coatings. [PDF]

, 2009
Thermal barrier coatings (TBCs) are crucial for increasing the turbine inlet temperature (and hence efficiency) of gas turbine engines. The thesis describes PhD research aimed at improving understanding of the thermal cycling failure mechanisms of ...
Wu, Rudder T.C., Wu, Rudder T.C.
core   +1 more source

Microstructural investigation of the coatings prepared by simultaneous aluminizing and siliconizing process on γ-TiAl [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2019
In this research, formation of aluminide/silicide diffusion coatings on γ-TiAl[Ti-48Al-2Nb–2Cr (at.%)] alloy using gasphase diffusion pack cementation process has been investigated. The application of powder mixtures with various chemical compositions in
Nouri S., Azadeh M.
doaj   +1 more source