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Corrosion and wear resistance of AISI 316L and 470 stainless steel by plasma nitriding

Grant number: 14/19535-4
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): November 01, 2014
Effective date (End): July 31, 2015
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal Investigator:Luciana Sgarbi Rossino
Grantee:Eliéser de Araújo Junior
Host Institution: Faculdade de Tecnologia de Sorocaba (FATEC Sorocaba). Centro Paula Souza (CEETEPS). Secretaria de Desenvolvimento Econômico (São Paulo - Estado). Sorocaba , SP, Brazil


The stainless steel are known for their corrosion resistance, which enable them to be used in severe working conditions such as petroleum and gas industry, chemical industry and orthopedic implants. However, they have low wear resistance. In this work, the thermochemical nitriding treatment is performed in two types of stainless steels, the AISI 316L and 470 by varying the material treatment time. The specimens plasma nitriding will be performed at different times, the fixed-temperature gas mixture of N2 and H2. Thus, the formed layers are characterized by metallographic analysis, microhardness measurements, and determination of the formed thickness layer. Corrosion tests shall be made on the basis of material and processed materials. Thus, it is possible to compare the corrosion resistance of stainless steels studied and verify that the nitriding treatment interferes with the corrosion resistance of these materials. Tests microwear by fixed sphere will be conducted to verify the influence of the layer formed on the wear resistance of the materials studied.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE ARAUJO JUNIOR, ELIESER; BANDEIRA, RAFAEL MARINHO; MANFRINATO, MARCOS DORIGAO; MORETO, JEFERSON APARECIDO; BORGES, ROGER; VALES, SANDRA DOS SANTOS; SUZUKI, PAULO ATSUSHI; ROSSINO, LUCIANA SGARBI. Effect of ionic plasma nitriding process on the corrosion and micro-abrasive wear behavior of AISI 316L austenitic and AISI 470 super-ferritic stainless steels. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 8, n. 2, p. 2180-2191, . (14/19535-4)

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