Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Detection of microstructure anisotropy using induced magnetic fields
Submission Author:
Edgard Silva , PB
Co-Authors:
Edgard Silva, ANA SILVA SOUZA ANDRADE, Josinaldo Leite, João Pereira Leite, Mickael Messias Rodrigues da Silva
Presenter: ANA SILVA SOUZA ANDRADE
doi://10.26678/ABCM.COBEM2017.COB17-1036
Abstract
Conventional manufacturing processes cause plastic deformation that leads to microstructural anisotropy in processed materials. The production of these materials involves many rolling steps and recrystallization thermal treatments, which can cause anisotropy. In the microstructures formed by ferrite and pearlite, the magnetic flux lines tend to pass more easily through the ferrite phase than the perlite phase due to their differences in magnetic permeability. In the present work, samples of rolled SAE 1045 steel were submitted to different induced magnetic fields to detect the microstructural anisotropy. The magnetic fields were applied to circular samples with different thicknesses and angles varying from 0° to 360° with steps of 45°. The average ferrite grain size was determined in function of the used rotation angles. The results detected a microstructural anisotropy of ferrite phase in the 45° angle.
Keywords
microstructure anisotropy, induced magnetic field, permeability
