INFLUENCE OF MICROSTRUCTURE ON MICROMAGNETIC BARKHAUSEN EMISSIONS IN AISI-4140 STEEL

被引：15
|
作者：
MITRA, A [1 ]
GOVINDARAJU, MR [1 ]
JILES, DC [1 ]
机构：
[1] NATL MET LAB,MAGNET GRP,JAMSHEDPUR 831007,BIHAR,INDIA
来源：
IEEE TRANSACTIONS ON MAGNETICS | 1995年 / 31卷 / 06期
关键词：
D O I：
10.1109/20.489859
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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.
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页码：4053 / 4055
页数：3
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