Developments in Macro and Micro Texture during Plane Strain Channel Die Compression of IF Steel

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概要

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• Textural developments in plane strain channel die compressed IF (interstitial free) steel were investigated for 7–75% reduction in thickness. Developments in macro texture were investigated by X-ray ODFs (orientation distribution functions) and were simulated by Taylor type models, while actual microtextural developments were studied by OIM (orientation imaging microscopy). Although a gradual increase in α-fiber (RD//<110>) was observed with increased reductions, γ-fiber (ND//<111>) increased till 40–50% reduction and then remained almost the same. At the earlier stages of deformation and in general for relatively larger grains, areas around grain boundaries were relatively more deformed (<I>i.e.</I> with more frequent low angle boundaries) and more rotated (as tested in split samples at 7 and 18% reduction) than the grain interior. Till 50% reduction, deformation substructures among deformed grains of different orientations were not significantly different. Above 50% deformation, relatively intense strain localizations (in the form of higher frequencies and larger misorientations of grain boundaries) were observed to form at an angle of about ≈ 37° with RD (rolling direction), somewhat more preferentially in the γ-fiber deformed grains of F {111} <112> and E {111} <110> components. The appearance of such strain localizations increased the stored energies of F/E bands and also possibly accounted for the formation of new high angle boundaries (as evident from increased grain splitting factors).

• 社団法人 日本鉄鋼協会の論文
• 1998-07-15

著者

• SAMAJDAR I.

  Department of Metallurgical Engineering and Materials Science

• Samajdar I.

  Department Mtm Katholieke Universiteit Leuven

• VERLINDEN B.

  Department MTM, Katholieke Universiteit Leuven

• VANHOUTTE P.

  Department MTM, Katholieke Universiteit Leuven

• Verlinden B.

  Department Mtm Katholieke Universiteit Leuven

• Vanhoutte P.

  Department Mtm Katholieke Universiteit Leuven

関連論文

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• Development of Grain Interior Strain Localizations during Plane Strain Deformation of a Deep Drawing Quality Sheet Steel
• Developments in Macro and Micro Texture during Plane Strain Channel Die Compression of IF Steel
• Development of Cold Rolled Texture and Microstructure in a Hot Band Fe-3%Si Steel
• Transformations during Intercritical Annealing of a TRIP-assisted Steel
• Textural Changes through Grain Growth in Ti-bearing IF-steel Investigated by Orientation Imaging Microscopy and X-ray Diffraction
• Strain Localizations in Ultra Low Carbon Steel : Exploring the Role of Dislocations

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