Environmental protection of Nb/Nb5Si3-based alloys by E/TBC systems

Braun, Reinhold; Schulz, Uwe; Portebois, Léo; Mathieu, Sandrine; Vilasi, Michel; Drawin, Stefan

doi:10.1016/j.intermet.2017.12.001

Cited by 3 publications

(1 citation statement)

References 53 publications

(83 reference statements)

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“…Because of these characteristics, the Nb-Si based alloys have great potential for application in the segments of aeroengines/ aerospace being that they can operate between 1200-1450 °C. Furthermore, these alloys are good candidates to substitute Ni-based superalloys currently operating at a maximum temperature of about 1150 °C and a density of about 20% higher than the Nb-Si based alloys [4][5][6][7][8] .…”

Section: Introductionmentioning

confidence: 99%

Fe-Cr-Si Codeposition on Nb-Si based Alloys via Halide Activated Pack Cementation to Improve Oxidation Resistance

et al. 2020

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The coating formation by Fe-Cr-Si codeposition was done in a single step via Halide Activated Pack Cementation (HAPC) on Nb-Si alloy with the aim of improving the oxidation resistance. The activator salt and temperature selections for HAPC process were obtained by thermodynamic analysis. The isothermal oxidation test results for the coated alloy at 1200 °C for 62 h showed good oxidation resistance. The mass gain was 17.5 mg/cm 2. Furthermore, no cracks and spallation on the oxide layers were observed for the coated alloy after the oxidation test, being that the oxidative kinetics curve is in accordance with the parabolic rate law. On the other hand, total oxidation was observed for the uncoated alloy after 12 h at 1200 °C in the isothermal oxidation test. The mass gain was 49.27 mg/cm 2 and several cracks and spallation on the oxide layers led to a severe oxidation process.

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Section: Introductionmentioning

confidence: 99%

Fe-Cr-Si Codeposition on Nb-Si based Alloys via Halide Activated Pack Cementation to Improve Oxidation Resistance

et al. 2020

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Diffusion Paths of Silicide Coatings on Nb-Si-Based Alloys During Pack Cementation Process

Shao

Cui

Zhou

2019

Metall Mater Trans A

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High temperature oxidation behavior of C103 alloy with boronized and siliconized coatings during 1000 h at 1100 °C in air

Swadźba

2019

Surface and Coatings Technology

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Environmental protection of Nb/Nb5Si3-based alloys by E/TBC systems

Cited by 3 publications

References 53 publications

Fe-Cr-Si Codeposition on Nb-Si based Alloys via Halide Activated Pack Cementation to Improve Oxidation Resistance

Fe-Cr-Si Codeposition on Nb-Si based Alloys via Halide Activated Pack Cementation to Improve Oxidation Resistance

Diffusion Paths of Silicide Coatings on Nb-Si-Based Alloys During Pack Cementation Process

High temperature oxidation behavior of C103 alloy with boronized and siliconized coatings during 1000 h at 1100 °C in air

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Environmental protection of Nb/Nb5Si3-based alloys by E/TBC systems

Cited by 3 publications

References 53 publications

Fe-Cr-Si Codeposition on Nb-Si based Alloys via Halide Activated Pack Cementation to Improve Oxidation Resistance

Fe-Cr-Si Codeposition on Nb-Si based Alloys via Halide Activated Pack Cementation to Improve Oxidation Resistance

Diffusion Paths of Silicide Coatings on Nb-Si-Based Alloys During Pack Cementation Process

High temperature oxidation behavior of C103 alloy with boronized and siliconized coatings during 1000 h at 1100 °C in air

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High temperature oxidation behavior of C103 alloy with boronized and siliconized coatings during 1000 h at 1100 °C in air