The magneto- mechanical behaviour of structural steel specimens stressed up to a plastic deformation stage using a high- Tc scanning SQUID ( superconducting quantum interference device) microscope is investigated. The correlation between the gradient of the normal component of the magnetization and dislocation density, before the crack initiation, is carried out. The capability of scanning SQUID microscopy to detect the residual magnetization, due to the tensile stress, with a non- invasive technique is reported.

Detection of plastic deformation in structural steel using scanning SQUID microscopy

Bonavolonta C;Valentino M;Adamo M;Sarnelli E
2007

Abstract

The magneto- mechanical behaviour of structural steel specimens stressed up to a plastic deformation stage using a high- Tc scanning SQUID ( superconducting quantum interference device) microscope is investigated. The correlation between the gradient of the normal component of the magnetization and dislocation density, before the crack initiation, is carried out. The capability of scanning SQUID microscopy to detect the residual magnetization, due to the tensile stress, with a non- invasive technique is reported.
2007
Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" - ISASI
INFM
magneto-mechanical effects
microscopy instrumentation
nondestructive testing of materials
SQUID devices
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/143625
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