Performance of diffusion aluminide coatings applied on alloy CF8C-Plus at 800°C

Deepak Kumar; Sebastien Dryepondt; Ying Zhang; J. Allen Haynes; Bruce A. Pint; Beth L. Armstrong; Amit Shyam; Edgar Lara-Curzio

Performance of diffusion aluminide coatings applied on alloy CF8C-Plus at 800°C

Deepak Kumar, Sebastien Dryepondt, Ying Zhang, J. Allen Haynes, Bruce A. Pint, Beth L. Armstrong, Amit Shyam, Edgar Lara-Curzio

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

High performance cast stainless steel, CF8C-Plus, is a low cost alloy with prospective applications ranging from covers and casings of small and medium size gas turbines to turbocharger housing and manifolds in internal combustion engines. Diffusion aluminide coatings were applied on this alloy as a potential strategy for improved oxidation resistance, particularly in wet air and steam. In this paper the performance of the aluminide coatings evaluated by cyclic oxidation experiments in air containing 10 vol.% H₂O at 800°C and conventional tension-compression low-cycle-fatigue tests in air at 800°C with a strain range of 0.5% is presented. The results show that specimens coated by a chemical vapor deposition process provide better oxidation resistance than those coated by an Al-slurry coating process. The application of a coating by pack cementation reduced the fatigue life by 15%.

Original language	English
Journal	NACE - International Corrosion Conference Series
State	Published - 2011
Event	Corrosion 2011 - Houston, TX, United States Duration: Mar 13 2011 → Mar 17 2011

Keywords

Aluminide coating
CF8C-Plus
Low-cycle-fatigue behavior
Oxidation

Cite this

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title = "Performance of diffusion aluminide coatings applied on alloy CF8C-Plus at 800°C",

abstract = "High performance cast stainless steel, CF8C-Plus, is a low cost alloy with prospective applications ranging from covers and casings of small and medium size gas turbines to turbocharger housing and manifolds in internal combustion engines. Diffusion aluminide coatings were applied on this alloy as a potential strategy for improved oxidation resistance, particularly in wet air and steam. In this paper the performance of the aluminide coatings evaluated by cyclic oxidation experiments in air containing 10 vol.% H2O at 800°C and conventional tension-compression low-cycle-fatigue tests in air at 800°C with a strain range of 0.5% is presented. The results show that specimens coated by a chemical vapor deposition process provide better oxidation resistance than those coated by an Al-slurry coating process. The application of a coating by pack cementation reduced the fatigue life by 15%.",

keywords = "Aluminide coating, CF8C-Plus, Low-cycle-fatigue behavior, Oxidation",

author = "Deepak Kumar and Sebastien Dryepondt and Ying Zhang and Haynes, {J. Allen} and Pint, {Bruce A.} and Armstrong, {Beth L.} and Amit Shyam and Edgar Lara-Curzio",

year = "2011",

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T1 - Performance of diffusion aluminide coatings applied on alloy CF8C-Plus at 800°C

AU - Kumar, Deepak

AU - Dryepondt, Sebastien

AU - Zhang, Ying

AU - Haynes, J. Allen

AU - Pint, Bruce A.

AU - Armstrong, Beth L.

AU - Shyam, Amit

AU - Lara-Curzio, Edgar

PY - 2011

Y1 - 2011

N2 - High performance cast stainless steel, CF8C-Plus, is a low cost alloy with prospective applications ranging from covers and casings of small and medium size gas turbines to turbocharger housing and manifolds in internal combustion engines. Diffusion aluminide coatings were applied on this alloy as a potential strategy for improved oxidation resistance, particularly in wet air and steam. In this paper the performance of the aluminide coatings evaluated by cyclic oxidation experiments in air containing 10 vol.% H2O at 800°C and conventional tension-compression low-cycle-fatigue tests in air at 800°C with a strain range of 0.5% is presented. The results show that specimens coated by a chemical vapor deposition process provide better oxidation resistance than those coated by an Al-slurry coating process. The application of a coating by pack cementation reduced the fatigue life by 15%.

AB - High performance cast stainless steel, CF8C-Plus, is a low cost alloy with prospective applications ranging from covers and casings of small and medium size gas turbines to turbocharger housing and manifolds in internal combustion engines. Diffusion aluminide coatings were applied on this alloy as a potential strategy for improved oxidation resistance, particularly in wet air and steam. In this paper the performance of the aluminide coatings evaluated by cyclic oxidation experiments in air containing 10 vol.% H2O at 800°C and conventional tension-compression low-cycle-fatigue tests in air at 800°C with a strain range of 0.5% is presented. The results show that specimens coated by a chemical vapor deposition process provide better oxidation resistance than those coated by an Al-slurry coating process. The application of a coating by pack cementation reduced the fatigue life by 15%.

KW - Aluminide coating

KW - CF8C-Plus

KW - Low-cycle-fatigue behavior

KW - Oxidation

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M3 - Conference article

AN - SCOPUS:79959963577

SN - 0361-4409

JO - NACE - International Corrosion Conference Series

JF - NACE - International Corrosion Conference Series

T2 - Corrosion 2011

Y2 - 13 March 2011 through 17 March 2011

ER -

Performance of diffusion aluminide coatings applied on alloy CF8C-Plus at 800°C

Abstract

Keywords

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