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Author(s): Edgard de M. Silva
Josinaldo P. Leite
Francisco A. de França Neto
João P. Leite
Walter M. L. Fialho
Victor Hugo C. de Albuquerque
João Manuel R. S. Tavares
Title: Evaluation of the magnetic permeability for the microstructural characterization of a duplex stainless steel
Issue Date: 2016
Abstract: Non-Destructive Testing has been commonly used to assess the presence of discontinuities that may affect the integrity of materials in service. In this study, a Hall effect sensor is used in a methodology developed to study in a non-destructive manner the microstructural variations of a material that occur due to the single-phase decomposition. The material selected was the UNS S31803 duplex stainless steel, particularly due to its behavior under temperatures below 525 °C. Measurements of magnetic permeability based on Hall voltage values were performed as well as hardness measurements and X-ray diffraction studies. The results confirm that the magnetic permeability can be used to successfully track the formation of α' phase from α phase in a duplex stainless steel.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Document Type: Artigo em Revista Científica Internacional
Rights: openAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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