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

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• 作者：G. M. Rusakov (1)
  M. L. Lobanov (2)
  A. A. Redikul鈥檛sev (2)
  I. V. Kagan (2)
• 关键词：commercial Fe ; 3%Si alloy &#8211 ; (110)[001] single crystal &#8211 ; cold deformation &#8211 ; twinning &#8211 ; special misorientations
• 刊名：The Physics of Metals and Metallography
• 出版时间：May 2011
• 出版年：2011
• 期刊代码：pc391_0031-918x
• 类别：ch
• 卷：111
• 期：5
• 页码：530-536
• 数据来源：sp

摘要

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)[[`1][`1]1][\bar 1\bar 11] and (11[`2]\bar 2)[[`1][`1][`1]][\bar 1\bar 1\bar 1]. systems. Upon a reorientation of the crystal lattice due to the operation of the slip system (112)[[`1][`1]1][\bar 1\bar 11], the twins of the (112)[[`1][`1]1][\bar 1\bar 11] type occupy a regular position in the octahedral matrix (111)[[`1][`1]2][\bar 1\bar 12], retaining a special misorientation Σ3 with the matrix in the entire process of deformation. The twinning system (11[`2]\bar 2)[[`1][`1][`1]][\bar 1\bar 1\bar 1] occupies an irregular position in the (111)[[`1][`1]2][\bar 1\bar 12], 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.