Oxidation of Nickel-Coated AISI 430 Alloy: Effect of Pre-oxidation and Fe0.5Ni0.5 Inter-diffusion Layer

King, Mark K.; Mahapatra, Manoj K.

doi:10.1007/s11085-020-09996-1

Cited by 5 publications

(5 citation statements)

References 39 publications

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“…2.54 cm × 2.54 cm × 0.06 cm AISI 430 coupons (MSC Industrial Supply Co. USA) were etched and cleaned. Nickel coating, 4.96 ± 0.28 μm thick, was electrochemically deposited on AISI 430 using sulfamate bath as described in another report [22,23]. Another set of cleaned AISI 430 was coated with Ni-P, 5.24 ± 0.10 μm thick, by a proprietary electroless deposition method (Advanced Technical Finishing, Huntsville, Alabama, USA) in accordance to MIL-C-26074 Class 1.…”

Section: Experimental Methodologymentioning

confidence: 99%

“…1(c)-1(f). Oxidation rate in air-3% H 2 O [22,24] is also shown for comparison. Faster oxidation rate is observed in the initial 20 h except for the Ni-P-coated sample [Fig.…”

Section: Oxidation Behaviormentioning

confidence: 99%

“…Nickel-coated (∼15 μm thick) AISI 441 corrodes in simulated dual atmosphere and forms oxide layer with porosity; metallic elements and gap between hematite and spinel layers in an air side and gap between iron oxide and nickel in a fuel side (H 2 -H 2 O) were observed [19]. Nickel coating is also reported to mitigate chromium evaporation of SOFC interconnects in the air side [20,21] and to improve oxidation resistance in humidified air [22,23]. However, the microstructure of nickel-coated SOFC interconnect, the aim of our study, has not been detailed in humidified hydrogen and/or dual environment although interfacial microstructure plays a crucial role for long-term performance.…”

Section: Introductionmentioning

confidence: 99%

“…Ni-P coating, widely used for corrosion protection of steel, also improves the oxidation resistance of ferritic alloy in humidified air [24]. Significant porosity in the oxide scale is found for Ni-P-coated AISI 430 alloy [24] while negligible for nickel coating [22]. We have investigated the corrosion of ∼5 μm thick nickel and Ni-P-coated AISI 430 alloy, a commercial ferritic alloy with similar properties of specialized Crofer 22 APU and AISI 441, in dry (Ar-3% H 2 ) and humidified hydrogen (Ar-3% H 2 -3% H 2 O) at 800°C.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion of nickel and nickel–phosphorous-coated AISI 430 in dry (Ar–3%H2) and humid hydrogen (Ar–3%H2–3%H2O) atmosphere

King

Mahapatra

2021

Journal of Materials Research

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The corrosion behavior of uncoated, nickel (Ni) and nickel-phosphorous (Ni-P)-coated AISI 430 alloy was investigated in Ar-3%H 2 and Ar-3%H 2 -3%H 2 O atmosphere at 800°C for 100 h. Microstructure, chemical composition, and reaction products were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, and X-ray diffraction techniques. The corrosion extent of Ni-P-coated AISI 430 is higher than Nicoated AISI 430. Oxidation promotes corrosion in the uncoated and coated alloy. The oxidation rate of Ni-coated alloy is the lowest in Ar-3%H 2 but Ni-P-coated alloy in Ar-3%H 2 -3%H 2 O for initial 20 h. The oxidation rate of the Ni-P-coated sample is ∼14 times higher in 20-100 h in Ar-3%H 2 -3%H 2 O. External growth of Cr 2 O 3 is observed for Ni-coated alloy in Ar-3%H 2 and for Ni-P-coated alloy in both the atmospheres. Inward growth of Cr 2 O 3 by AISI 430 alloy consumption attributes to the lowest oxidation rate and the corrosion extent of Ni-coated sample in Ar-3%H 2 -3%H 2 O.

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Section: Experimental Methodologymentioning

confidence: 99%

“…1(c)-1(f). Oxidation rate in air-3% H 2 O [22,24] is also shown for comparison. Faster oxidation rate is observed in the initial 20 h except for the Ni-P-coated sample [Fig.…”

Section: Oxidation Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Corrosion of nickel and nickel–phosphorous-coated AISI 430 in dry (Ar–3%H2) and humid hydrogen (Ar–3%H2–3%H2O) atmosphere

King

Mahapatra

2021

Journal of Materials Research

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“…These new substances appear dark contrast layered under the SEM. King et al also showed that during the oxidation process, a layer of dark layered substance was formed on the surface of the sample under the SEM [19]. With the increasing processing temperatures, the thickness of the dark contrast layer increased first and then decreased gradually.…”

Section: Structure Analysismentioning

confidence: 98%

Influence of Oxidation Processing Temperature on the Structure, Mechanical and Tribological Properties of Titanium Using Carbon Sheets

Chen

Koyama

Nishida

et al. 2021

Metals

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Surface processing of pure titanium was performed using a carbon sheet to increase the surface hardness and improve tribological property. The effect of processing temperature (750–950 °C) for 2 h on the structure, mechanical and room-temperature tribological properties of the treated samples was investigated using X-ray diffraction, scanning electron microscopy, and ball-on-disk tribometry, respectively. The Gibbs free energy was also calculated to evaluate the compounds generated at different processing temperatures. As a result of the examination, the hardened layer was mainly composed of titanium oxide and titanium carbide. With the increasing processing temperatures, the thickness of the hardened layer increased first and then decreased gradually. It was also revealed that the surface hardness was increased first and then decreased as the processing temperature increased. The fricative value of the treated samples showed a minimum value of 84.1 dB for a processing temperature of 850 °C. The depth and width of the wear tracks increased first and then decreased gradually with the increasing processing temperatures. The worn surface of the treated samples at higher temperatures showed a very good wear resistance. A processing temperature at 850 °C is considered optimal as it provides sufficiently high hardness and a low coefficient of friction to reduce fricative during practical use.

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Thermal Decomposition of Nickel Salt Hydrates

King

Mahapatra

2022

Int J Thermophys

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Oxidation of Nickel-Coated AISI 430 Alloy: Effect of Pre-oxidation and Fe0.5Ni0.5 Inter-diffusion Layer

Cited by 5 publications

References 39 publications

Corrosion of nickel and nickel–phosphorous-coated AISI 430 in dry (Ar–3%H2) and humid hydrogen (Ar–3%H2–3%H2O) atmosphere

Corrosion of nickel and nickel–phosphorous-coated AISI 430 in dry (Ar–3%H2) and humid hydrogen (Ar–3%H2–3%H2O) atmosphere

Influence of Oxidation Processing Temperature on the Structure, Mechanical and Tribological Properties of Titanium Using Carbon Sheets

Thermal Decomposition of Nickel Salt Hydrates

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