Magnetic properties of cementite and the coercive force of carbon steels after plastic deformation and annealing

Magnetic hysteresis properties of cementite obtained by the method of mechanical alloying have been studied. It is shown that the strongly deformed cementite is in a low-coercivity state, and the cementite annealed at 500°C is in a high-coercivity state. The need to allow for the contribution of the...

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Bibliographic Details
Published in:Physics of metals and metallography 2009-05, Vol.107 (5), p.439-448
Main Authors: Ul’yanov, A. I., Chulkina, A. A.
Format: Article
Language:English
Subjects:
Alloys
Chemistry and Materials Science
Electrical and Magnetic Properties
Materials Science
Metallic Materials
Metallurgy
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Summary:Magnetic hysteresis properties of cementite obtained by the method of mechanical alloying have been studied. It is shown that the strongly deformed cementite is in a low-coercivity state, and the cementite annealed at 500°C is in a high-coercivity state. The need to allow for the contribution of the coercivity of cementite to the coercive force of high-carbon steel is shown. Taking into account this point of view, the behavior of the coercive force depending on the degree of cold plastic deformation by drawing is explained for a number of carbon steels with a structure of fine platelike and globular cementite.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X09050044