Preparation of Cr-N coatings on 316H stainless steel via pack chromizing and gas nitriding, and their resistance to liquid metal corrosion in early stages

Guo, Shuwei; Liu, Lintao; He, Fei; Wang, Shaopeng

doi:10.1016/j.surfcoat.2024.130665

Surface and Coatings Technology

2024

DOI: 10.1016/j.surfcoat.2024.130665

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Preparation of Cr-N coatings on 316H stainless steel via pack chromizing and gas nitriding, and their resistance to liquid metal corrosion in early stages

Shuwei Guo,

Lintao Liu,

Fei He

et al.

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2024

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Cited by 2 publications

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Influence of Aluminum on the Retained Austenite Content and Stresses in the Surface Layer of Steel after a Hybrid Low‐Pressure Carburizing Process with Metallization

Kowalczyk,

Dybowski,

Januszewicz

et al. 2024

Adv Eng Mater

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The article presents a unique method of modifying the surface layer properties of low‐alloy steels. This method consists of the simultaneous saturation of the surface layer with aluminum and carbon. A hybrid heat treatment process is used, which integrates diffusion metallization with low‐pressure carburizing (LPC). An aluminum coating is applied to the surface of the steel by physical vapour deposition or slurry method to saturate the surface layer with aluminum. The steel is then annealed to create a diffusion layer and subjected to LPC. Gas quenching in nitrogen and low‐temperature tempering are performed after carburization. This surface treatment tenfold reduces the amount of retained austenite in the carburized layer. This is particularly critical for carburized steels that include austenite‐stabilizing elements, such as nickel and manganese. This causes an increase in surface hardness. It also changes the state of residual stress compared to ordinary LPC to one that is more favorable from the point of view of operation—compressive stresses are generated in the technological surface layer.

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Influence of Aluminum on the Retained Austenite Content and Stresses in the Surface Layer of Steel after a Hybrid Low‐Pressure Carburizing Process with Metallization

Kowalczyk,

Dybowski,

Januszewicz

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

Research progress on LBE corrosion-resistant coatings: A review

Zhang,

Deng,

Zhong

et al. 2024

Progress in Nuclear Energy

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Preparation of Cr-N coatings on 316H stainless steel via pack chromizing and gas nitriding, and their resistance to liquid metal corrosion in early stages

Cited by 2 publications

References 53 publications

Influence of Aluminum on the Retained Austenite Content and Stresses in the Surface Layer of Steel after a Hybrid Low‐Pressure Carburizing Process with Metallization

Influence of Aluminum on the Retained Austenite Content and Stresses in the Surface Layer of Steel after a Hybrid Low‐Pressure Carburizing Process with Metallization

Research progress on LBE corrosion-resistant coatings: A review

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