Duplex and superduplex stainless steels: microstructure and properties evolution by surface modification processes

The paper presents an overview of diffusion surface treatments, especially nitriding processes, applied to duplex and superduplex stainless steels in the last five years. Research has been done mainly to investigate different nitriding processes in order to optimize parameters for the most appropria...

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Detalhes bibliográficos
Autores: Biserova Tahchieva, Alisiya, Llorca Isern, Núria|||0000-0003-0501-3866, Cabrera Marrero, José M.|||0000-0001-8417-1736
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/174922
Acesso em linha:https://hdl.handle.net/2117/174922
Access Level:acceso abierto
Palavra-chave:Metals
Duplex stainless steels
Superduplex stainless steels
Nitriding
Secondary phases
Surface treatments
Metalls
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
Descrição
Resumo:The paper presents an overview of diffusion surface treatments, especially nitriding processes, applied to duplex and superduplex stainless steels in the last five years. Research has been done mainly to investigate different nitriding processes in order to optimize parameters for the most appropriate procedure. The scope has been to improve mechanical and wear resistance without prejudice to the corrosion properties of the duplex and superduplex stainless steels. Our investigation also aimed to understand the effect of the nitriding layer on the precipitation of secondary phases after any heating step.