Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Detection of ferrite phase transformation by induced magnetic field on a duplex stainless steel
Submission Author:
Edgard Silva , PB
Co-Authors:
Edgard Silva, ANA SILVA SOUZA ANDRADE, Francildo de Oliveira, Michelline Nery Azevedo Lima, Josinaldo Leite, João Pereira Leite, Mickael Messias Rodrigues da Silva
Presenter: ANA SILVA SOUZA ANDRADE
doi://10.26678/ABCM.COBEM2017.COB17-1035
Abstract
The production of ferrite transformation in duplex stainless steel phase is responsible for the embrittlement of duplex stainless steels. A small amount of sigma phase, for example, is enough to produces unfavorable mechanical and corrosion properties due its brittle nature. In this work, a new affordable approach to detect and follow-up the kinetic of the ferrite phase transformation, based on the measurement of an induced magnetic field generated due to the interaction between an external magnetic field and the microstructure under study is evaluated. To validate the proposed approach, induced magnetic field values are compared to the values of the Charpy impact energy, optical microscopy analysis and X-ray diffraction. The results obtained with the 2205 duplex stainless steel show that there is a relationship between the impact energy, and induced magnetic field, and thus the successfully follow-up of the material embrittlement is possible.
Keywords
ferrite phase, induced magnetic field, duplex stainless steel
