Results 101 to 110 of about 1,069,208 (196)

Impulse based Barkhausen-noise investigation on structural steels [PDF]

open access: yes, 2011
A ferromágneses anyagok átmágnesezési folyamata során keletkező irreguláris mágnesezési ugrásokat Barkhausen-zajnak nevezzük. Szerepe főként –roncsolásmentes volta miatt– a szerkezeti acélok állapotfelmérésében jelentős. A gyakorlati alkalmazások mellett
Bükki-Deme, András
core  

Barkhausen noise testing of surface decarburization of steel

open access: yes, 2010
Magnetic Barkhausen noise technique was tested for applicability of non-destructive charaterization of the decarburized layer depth. A newly introduced parameter, Barkhausen noise coercivity, was proposed for practical use due to its sensitivity to the ...
Stupakov, Oleksandr
core  

RELATION BETWEEN MECHANICAL BARKHAUSEN NOISE AND MAGNETOMECHANICAL INTERNAL FRICTION

open access: yes, 1987
The mechanical Barkhausen noise (MBN) induced by torsional vibration (80 Hz) was measured for Copt alloy. The shear strain hysteresis loop and the frequency spectrum were analyzed.
B. AUGUSTYNIAK, A. VANNES
core   +1 more source

Preliminary study: Barkhausen noise evaluation on the Hardening Depth of Induction-hardened carbon steel

open access: yes, 2017
Induction hardening depth evaluation by means of Barkhausen noise (BN) technique is one known non-destructive evaluation (NDE). The acquired signal, nevertheless, is not easy to be interpreted owing to information and materials complexity.
Persson, Gert,   +4 more
core  

Tensile-stress effect on ferroelectric Barkhausen noise

open access: yes
International audienceThis study examines the effect of tensile stress on the ferroelectric properties of Pb(Zr0.4Ti0.6)O3 thin film, with a focus on Barkhausen noise, observed for the first time under such conditions. Tensile stress significantly alters
Yazawa, Keisuke   +4 more
core   +1 more source

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