On the effect of salt bath nitrocarburizing on the cavitation erosion behavior of AISI 304L stainless steel

Markanday, Himanshu; Roy, Samir Chandra; Somers, Marcel A.J.

doi:10.1016/j.engfailanal.2024.108752

Engineering Failure Analysis

2024

DOI: 10.1016/j.engfailanal.2024.108752

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On the effect of salt bath nitrocarburizing on the cavitation erosion behavior of AISI 304L stainless steel

Himanshu Markanday,

Samir Chandra Roy,

Marcel A.J. Somers

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2024

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The Expanded Phases Formed in Stainless Steels by Means of Low-Temperature Thermochemical Treatments: A Corrosion Perspective

Borgioli

2024

Metals

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Surface engineering of stainless steels using thermochemical treatments at low temperatures has been the subject of intensive research for enhancing the surface hardness of these alloys without impairing their corrosion resistance. By using treatment media rich in nitrogen and/or carbon, it is possible to inhibit chromium compound formation and obtain supersaturated solid solutions, known as expanded phases, such as expanded austenite or S-phase in austenitic stainless steels, expanded ferrite in ferritic grades, and expanded martensite in martensitic grades. These low-temperature treatments produce a significant increase in surface hardness, which improves wear and fatigue resistance. However, the corrosion behavior of the modified surface layers remains of paramount importance. In the international literature, many studies on this topic are reported, but the results are not always univocal, and there are still open questions. In this review, the corrosion behavior of the expanded phases and the modified layers in which they are present is critically analyzed and discussed. The relationships between the phase composition and the microstructure of the modified layers and the corrosion resistance are highlighted while also considering the different test conditions. Furthermore, corrosion test methods are discussed, and suggestions are given for improving the measurements. Finally, perspectives on future directions for investigation are suggested for encouraging further research.

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The Expanded Phases Formed in Stainless Steels by Means of Low-Temperature Thermochemical Treatments: A Corrosion Perspective

Borgioli

2024

Metals

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On the effect of salt bath nitrocarburizing on the cavitation erosion behavior of AISI 304L stainless steel

Cited by 1 publication

References 22 publications

The Expanded Phases Formed in Stainless Steels by Means of Low-Temperature Thermochemical Treatments: A Corrosion Perspective

The Expanded Phases Formed in Stainless Steels by Means of Low-Temperature Thermochemical Treatments: A Corrosion Perspective

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