Specific features of cold deformation of a (110)[001] single crystal of an Fe-3% Si-0.5% cu alloy related to twinning

It is shown that upon cold rolling the deformation of an Fe-3% Si-0.5% Cu single crystal with a (110)[001] orientation occurs, along with slip, by twinning in the (112) and (11 ) . systems. Upon a reorientation of the crystal lattice due to the operation of the slip system (112) , the twins of the (...

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Bibliographic Details
Published in:Physics of metals and metallography 2011-05, Vol.111 (5), p.530-536
Main Authors: Rusakov, G. M., Lobanov, M. L., Redikul’tsev, A. A., Kagan, I. V.
Format: Article
Language:English
Subjects:
Alloys
Chemistry and Materials Science
COLD ROLLING
DEFORMATION
DISLOCATIONS
Ferrous alloys
Inclination
Iron
IRON ALLOYS (50 TO 99 FE)
Materials Science
Metallic Materials
Misorientation
Single crystals
Slip
Strength and Plasticity
Twinning
Twinning (Crystallography)
Twins
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Summary:It is shown that upon cold rolling the deformation of an Fe-3% Si-0.5% Cu single crystal with a (110)[001] orientation occurs, along with slip, by twinning in the (112) and (11 ) . systems. Upon a reorientation of the crystal lattice due to the operation of the slip system (112) , the twins of the (112) type occupy a regular position in the octahedral matrix (111) , retaining a special misorientation Σ3 with the matrix in the entire process of deformation. The twinning system (11 ) occupies an irregular position in the (111) , matrix, but also proves to be in a special misorientation Σ3 with it. A dislocation mechanism is suggested, which makes it possible to explain the retention of the special misorientation and the inclination of the habit plane of twins of both systems of twins.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X11040119