Formation of Deformation Twins and Related Shear Bands in a Copper Single Crystal Deformed by Equal-Channel Angular Pressing for One Pass at Room Temperature
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- Miyamoto Hiroyuki
- Department of Mechanical Engineering, Doshisha University
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- Vinogradov Alexei
- Department of Intelligent Materials, Osaka City University
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- Hashimoto Satoshi
- Department of Intelligent Materials, Osaka City University
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- Yoda Rika
- Kobelco Research Institute Inc.
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Deformation twinning, which is extremely difficult to produce in face-centered cubic (FCC) crystals with medium to high stacking fault energy (SFE), was observed in pure copper single crystals with an appropriate crystallographic orientation subjected to equal-channel angular pressing (ECAP) for one pass at room temperature. Dense shear bands were also observed, delineated by large-angle grain boundaries, and with close to a twinning relation with the matrix, suggesting the role of deformation twinning at their nucleation sites. The activation of deformation twinning is rationalized by a favorable crystallographic orientation and predominant dislocation density in a primary slip system.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 50 (8), 1924-1929, 2009
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204250419456
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- NII論文ID
- 10025154700
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 10297699
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
