In situ evidence of enhanced transformation kinetics in a medium carbon steel due to a high magnetic field

被引：88
作者：
Ludtka, GM
Jaramillo, RA
Kisner, RA
Nicholson, DM
Wilgen, JB
Mackiewicz-Ludtka, G
Kalu, PN
机构：
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[2] FAMU FSU, Coll Engn, Tallahassee, FL 32310 USA
[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
来源：
SCRIPTA MATERIALIA | 2004年 / 51卷 / 02期
关键词：
steels; phase transformation kinetics; magnetic field; austenite decomposition;
D O I：
10.1016/j.scriptamat.2004.03.029
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A medium carbon steel was cooled from 850 degreesC at various rates with and without a 30-T magnetic field. Due to the magnetic field, the onset of thermal recalescence associated with the release of latent heat showed 70-90 degreesC increase, indicating acceleration in austenite decomposition. The relative shift was cooling rate dependent. Microstructural examination revealed increased ferrite content and corroborated temperature measurements. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：171 / 174
页数：4
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[1]   Effects of a strong magnetic field on the phase stability of plain carbon steels [J].
Choi, JK ;
Ohtsuka, H ;
Xu, Y ;
Choo, WY .
SCRIPTA MATERIALIA, 2000, 43 (03) :221-226
[2]   Influence of magnetic field on the kinetics of proeutectoid ferrite transformation in iron alloys [J].
Enomoto, M ;
Guo, H ;
Tazuke, Y ;
Abe, YR ;
Shimotomai, M .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (03) :445-453
[3]   An effect of high magnetic field on phase transformation in Fe-C system [J].
Joo, HD ;
Kim, SU ;
Shin, NS ;
Koo, YM .
MATERIALS LETTERS, 2000, 43 (5-6) :225-229
[4]   Characteristics of heat generation during transformation in carbon steels [J].
Lee, KJ .
SCRIPTA MATERIALIA, 1999, 40 (06) :735-742
[5]   Effect of a magnetic field on phase transformation of steel [J].
Liu, W ;
Ou, DR ;
Zhou, HH ;
Tang, GY ;
Wu, F .
JOURNAL OF MATERIALS RESEARCH, 2001, 16 (08) :2280-2282
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