Continuous Transition of Deformation Modes in Fe-30Mn-5Si-1Al Alloy
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- Koyama Motomichi
- Shibaura Institute of Technology
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- Sawaguchi Takahiro
- National Institute for Materials Science
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- Ogawa Kazuyuki
- National Institute for Materials Science
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- Kikuchi Takehiko
- National Institute for Materials Science
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- Murakami Masato
- Shibaura Institute of Technology
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Deformation modes at various stages of plastic deformation have been investigated at the same location in an Fe-30Mn-5Si-1Al (mass%) alloy specimen, which exhibits a good shape memory effect associated with the FCC(γ)→HCP(ε) martensitic transformation and a relatively high ductility caused by deformation twinning. The surface relief caused by the γ→ε martensitic transformation, deformation twinning and slip band formation has been analyzed by measuring the surface tilt angles corresponding to each deformation mode by atomic force microscopy. Although the ε-martensitic transformation is the dominant deformation mode at an early deformation stage, a part of the ε-martensite plates changes to deformation twins with increasing tensile strain. Slip deformation also occurs inside the same region under excessive strain. A continuous transition of these deformation modes occurs in other grains as well in the same order: ε martensite → deformation twins → slip bands.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 51 (7), 1194-1199, 2010
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
- 1390282679226939136
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- NII論文ID
- 10027018545
- 130004454501
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BC3cXhtFSltbfK
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 10735786
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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
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