抄録
We analyzed the surface relief caused by stress-induced hcp martensitic transformation in Fe-30Mn-5Si-1A1 shape memory alloy by atomic force microscopy. The alloy exhibits a good shape memory effect and an improved ductility due to a small addition of Al to a conventional Fe-30Mn-6Si shape memory alloy. The orientation of an austenite matrix was determined with surface traces of four {111}f planes, which enabled us to determine the surface tilt angles for all twelve variants of hep martensites and deformation twins. On the basis of these values, stress-induced martensite and deformation twin coexisting in the same grain were identified by studying the surface tilt angles. The surface relieves caused by the stress-induced martensite recovered after heating above the reversed transformation temperature, however some relieves originating from the deformation twin remained.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 812-816 |
| ページ数 | 5 |
| ジャーナル | Materials Transactions |
| 巻 | 49 |
| 発行部数 | 4 |
| DOI | |
| 出版物ステータス | Published - 2008 4 |
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ASJC Scopus subject areas
- Materials Science(all)
- Metals and Alloys
これを引用
AFM observation of microstructural changes in Fe-Mn-Si-Al shape memory alloy. / Koyama, Motomichi; Murakami, Masato; Ogawa, Kazuyuki; Kikuchi, Takehiko; Sawaguchi, Takahiro.
：: Materials Transactions, 巻 49, 番号 4, 04.2008, p. 812-816.研究成果: Article
}
TY - JOUR
T1 - AFM observation of microstructural changes in Fe-Mn-Si-Al shape memory alloy
AU - Koyama, Motomichi
AU - Murakami, Masato
AU - Ogawa, Kazuyuki
AU - Kikuchi, Takehiko
AU - Sawaguchi, Takahiro
PY - 2008/4
Y1 - 2008/4
N2 - We analyzed the surface relief caused by stress-induced hcp martensitic transformation in Fe-30Mn-5Si-1A1 shape memory alloy by atomic force microscopy. The alloy exhibits a good shape memory effect and an improved ductility due to a small addition of Al to a conventional Fe-30Mn-6Si shape memory alloy. The orientation of an austenite matrix was determined with surface traces of four {111}f planes, which enabled us to determine the surface tilt angles for all twelve variants of hep martensites and deformation twins. On the basis of these values, stress-induced martensite and deformation twin coexisting in the same grain were identified by studying the surface tilt angles. The surface relieves caused by the stress-induced martensite recovered after heating above the reversed transformation temperature, however some relieves originating from the deformation twin remained.
AB - We analyzed the surface relief caused by stress-induced hcp martensitic transformation in Fe-30Mn-5Si-1A1 shape memory alloy by atomic force microscopy. The alloy exhibits a good shape memory effect and an improved ductility due to a small addition of Al to a conventional Fe-30Mn-6Si shape memory alloy. The orientation of an austenite matrix was determined with surface traces of four {111}f planes, which enabled us to determine the surface tilt angles for all twelve variants of hep martensites and deformation twins. On the basis of these values, stress-induced martensite and deformation twin coexisting in the same grain were identified by studying the surface tilt angles. The surface relieves caused by the stress-induced martensite recovered after heating above the reversed transformation temperature, however some relieves originating from the deformation twin remained.
KW - Aluminum addition
KW - Atomic force microscopy
KW - Ductility
KW - Iron-manganese-silicon
KW - Martensite
KW - Shape memory alloy
KW - Twin
KW - Twinning induced plasticity
UR - http://www.scopus.com/inward/record.url?scp=44349097526&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44349097526&partnerID=8YFLogxK
U2 - 10.2320/matertrans.MRA2007321
DO - 10.2320/matertrans.MRA2007321
M3 - Article
AN - SCOPUS:44349097526
VL - 49
SP - 812
EP - 816
JO - Materials Transactions
JF - Materials Transactions
SN - 1345-9678
IS - 4
ER -