Correlation of the Barkhausen Noise with Metallurgical and Mechanical Characteristics of Welded Low Carbon Steel

Abstract:

The influence of Electron Beam welding technique on the microstructure, mechanical and magnetic properties of low carbon steels was presented and evaluated. Samples with dimensions of 12 cm x 6 cm x 1.5 mm were prepared from stock plate, installed on the welding table and welded at welding speeds and pulsed currents following a predesigned protocol. In order to examine the influence of welding on the magnetizing behavior of low carbon steel, magnetic Barkhausen noise were conducted on the surface of the welded samples. The results were further evaluated by examining the microstructure and mechanical properties of the welded samples by using scanning electron microscopy and micro-hardness measurements, respectively.

• Periodical: Key Engineering Materials (Volume 644)
• Pages: 262-265
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.644.262
• Online since: May 2015
• Authors: Polykseni Vourna*, Aphrodite Ktena, Evangelos Hristoforou
• Keywords: Electron Beam Welding, Low Carbon Steel, Magnetic Barkhausen Noise

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