AFM observation of microstructural changes in Fe-Mn-Si-Al shape memory alloy

Motomichi Koyama, Masato Murakami, Kazuyuki Ogawa, Takehiko Kikuchi, Takahiro Sawaguchi

研究成果: Article

13 引用 (Scopus)

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
49
発行部数4
DOI
出版物ステータスPublished - 2008 4

Fingerprint

shape memory alloys
Shape memory effect
atomic force microscopy
martensite
Martensite
Martensitic transformations
martensitic transformation
austenite
ductility
Austenite
Ductility
Atomic force microscopy
Heating
heating
matrices
Temperature
temperature

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

Koyama, Motomichi ; Murakami, Masato ; Ogawa, Kazuyuki ; Kikuchi, Takehiko ; Sawaguchi, Takahiro. / AFM observation of microstructural changes in Fe-Mn-Si-Al shape memory alloy. :: Materials Transactions. 2008 ; 巻 49, 番号 4. pp. 812-816.
@article{e71e63d007ff43f88ec4021bded1312f,
title = "AFM observation of microstructural changes in Fe-Mn-Si-Al shape memory alloy",
abstract = "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.",
keywords = "Aluminum addition, Atomic force microscopy, Ductility, Iron-manganese-silicon, Martensite, Shape memory alloy, Twin, Twinning induced plasticity",
author = "Motomichi Koyama and Masato Murakami and Kazuyuki Ogawa and Takehiko Kikuchi and Takahiro Sawaguchi",
year = "2008",
month = "4",
doi = "10.2320/matertrans.MRA2007321",
language = "English",
volume = "49",
pages = "812--816",
journal = "Materials Transactions",
issn = "1345-9678",
publisher = "Japan Institute of Metals (JIM)",
number = "4",

}

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 -