Low-pressure diffusion chromising of thin low-carbon steel sheet for improved surface and bulk properties

Ніколов, K.; Kaestner, Peter; Klages, C.‐P.; Puls, St.; Schuhmacher, Bernd

doi:10.1016/j.jallcom.2016.09.010

Cited by 7 publications

(3 citation statements)

References 25 publications

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“…Electrochemical impedance spectroscopy (EIS), known as the AC impedance spectroscopy in the early electrochemical literatures [10]. Electrochemical impedance spectroscopy is an electrochemical measurement method that uses a small amplitude sine wave potential (or current) as the disturbance [11].…”

Section: Resultsmentioning

confidence: 99%

Performance Differences of Ta2O5 Films under Different Magnetron Sputtering Conditions

Li¹,

Cui²,

Wang³

et al. 2017

Proceedings of the 2017 5th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2017)

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Abstract. Ta 2 O 5 films are applied widely in semiconductor materials, storage devices, optical devices and many other areas. There are many methods to prepare Ta 2 O 5 thin films. In this paper, we have explored the effects on the properties of films at different experimental conditions in the process of RF magnetron sputtering. In the experiments, the sputtering time and the O 2 -Ar flow ratio were changed. Then the properties of the Ta 2 O 5 films prepared under different experimental conditions were compared, especially their electrochemical impedance characteristics and their optical transmittance properties.

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Section: Resultsmentioning

confidence: 99%

Performance Differences of Ta2O5 Films under Different Magnetron Sputtering Conditions

Li¹,

Cui²,

Wang³

et al. 2017

Proceedings of the 2017 5th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2017)

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“…However, one of the most frequently applied elements that can ensure increase corrosion resistance is chromium. The use of chromium plating to increase the corrosion resistance is a procedure that is widely applied in the case of e.g., fuel cells [13], tools [14], or other elements made of different metal alloys [15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

The Hybrid Process of Low-Pressure Carburizing and Metallization (Cr + LPC, Al + LPC) of 17CrNiMo7-6 and 10NiCrMo13-5 Steels

et al. 2021

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This paper presents the concept of modification of physicochemical properties of steels by simultaneous diffusion saturation with carbon and chromium or aluminum. The application of a hybrid surface treatment process consisting of a combination of aluminizing and low-pressure carburizing (Al + LPC) resulted in a reduction in the amount of retained austenite in the surface layer of the steel. While the use of chromium plating and low-pressure carburizing (Cr + LPC) induced an improvement in the corrosion resistance of the carburized steels. It is of particular importance in case of vacuum processes after the application of which the active surface corrodes easily, as well as in case of carburizing of low-alloy steel with nickel, where an increased content of retained austenite in the surface layer is found after carburizing.

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“…To resist oxidation at elevated temperatures, many superalloy part, such as turbine blades and nozzle guiding fins, are generally of interest in the diffusion aluminide coatings [6]. The formation of the protective alumina scale (especially under cyclic loading conditions) during high temperature exposures is preferred due to the strong interdifusion between aluminide coatings and superalloy substrate [7], [8]. Various metals and alloys that produce single or multi-component metal diffusion coatings and composite layers are an important for protecting the components from oxidation, aqueous corrosion and corrosion at high temperature [9].…”

Section: Introductionmentioning

confidence: 99%

Chromium-Aluminide Coatings via Pack Cementation Method on Inconel 718 Alloy and Fe-Cr-Ni SuperAlloy

Yener

2019

Sakarya University Journal of Science

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In this study, it is invastigated the low-temperature chromium aluminide coatings on a FeCrNi-base superalloy and Inconel 718 by pack cementation method. Pack-aluminizing diffusion coating was applied at 800°C during 4 and 6 hours. The chromium-aluminising powder packs were prepared using aluminium and chromium powders as a source for depositing aluminium and chrominium, Al2O3 powder as an inert filler and ammonium chloride NH4Cl as an activator. SEM (scanning electron microscope) EDS with energy dispersive X-ray spectrometer and XRD were used to characterize the coating layers. SEM analysis revealed that coating layers were homogenous, compact and nonporous and there was a good bonding at the interface of the coating and matrix. Layer thickness variation was changed from 11 to 18 µm measured from the surface to the matrix. The hardness of the coating layer increased to 1000 HVN while the hardness of the matrix was 340 HVN with the increasing process time.

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Low-pressure diffusion chromising of thin low-carbon steel sheet for improved surface and bulk properties

Cited by 7 publications

References 25 publications

Performance Differences of Ta2O5 Films under Different Magnetron Sputtering Conditions

Performance Differences of Ta2O5 Films under Different Magnetron Sputtering Conditions

The Hybrid Process of Low-Pressure Carburizing and Metallization (Cr + LPC, Al + LPC) of 17CrNiMo7-6 and 10NiCrMo13-5 Steels

Chromium-Aluminide Coatings via Pack Cementation Method on Inconel 718 Alloy and Fe-Cr-Ni SuperAlloy

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