Evaluation of the Magnetic Permeability for the Microstructural Characterization of a Duplex Stainless Steel

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Edgard de M. Silva (Author) Other; Josinaldo P. Leite (Author) Other; Francisco A. de França Neto (Author) Other; João P. Leite (Author) Other; Walter M. L. Fialho (Author) Other; Victor Hugo C. de Albuquerque (Author) Other; João Manuel R. S. Tavares (Author) FEUP

Journal

Title: Journal of Testing and Evaluation

Vol. 44

Pages: 1106-1111

ISSN: 0090-3973

Publisher: American Society for Testing and Materials

Indexing

ISI Web of Knowledge - 5 Citations

ISI Web of Science

Scopus - 9 Citations

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-00K-P8A

DOI: 10.1520/jte20130313

Abstract (EN): 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 because of the single-phase decomposition. The material selected was the UNS S31803 duplex stainless steel, particularly because of its behavior at temperatures below 525 degrees 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 alpha' phase from alpha phase in a duplex stainless steel.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6