Metalurgija, Vol. 40 No. 3, 2001.
Stručni rad
Description of Various Degrees of Cold Plastic Deformation Structural Steel Based on Barkhausen Noise
J. Grum
B. Pečnik
D. Fefer
Sažetak
The magnetic Barkhausen effect is a phenomenon occurring during magnetisation of ferromagnetic materials and related to movements of magnetic domains under the influence of an alternating magnetic field. Behaviour of magnetic domains is dependent on microstructure characteristics such as grain size and grain orientation, cold deformation, microhardness, residual stresses, dislocations, impurities. In the investigation, a deep-drawing steel DIN St10 in the soft condition, in the form of plate and strips having various initial thicknesses, which were subsequently cold rolled to a uniform thickness, was used. The test pieces used were hardened by cold deformation, and had a changed microstructure and modified microhardness with regard to the degree of cold plastic deformation.
Ključne riječi
Hrčak ID:
128631
URI
Datum izdavanja:
1.7.2001.
Posjeta: 990 *