Mitra, A and Govindaraju, M R and Jiles, D C (1995) Influence of microstructure on micromagnetic barkhausen emissions in aisi-4140 steel. IEEE Transactions on Magnetics, 31 (6). pp. 4053-4055.
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The effects of microstructure on the micromagnetic Barkhausen signal emissions in AISI 4140 steel ale reported. The Barkhausen signal amplitude is known to be highly sensitive to the type and distribution of microstructural inhomogeneities, such as grain boundaries, precipitates and dislocations. The Barkhausen measurements were taken on samples having pearlitic, spheroidized and bainitic microstructures. The Barkhausen emissions were measured in terms of rms voltage, peak-to-peak voltage and number of events per cycle. It is shown that Barkhausen signals can be used to distinguish between pearlitic and bainitic microstructures.
|Uncontrolled Keywords:||Micromagnetic barkhausen emissions|
|Divisions:||Material Science and Technology|
|Deposited By:||Sahu A K|
|Deposited On:||14 Jun 2010 16:40|
|Last Modified:||25 Jan 2012 10:44|
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