Hostname: page-component-5c6d5d7d68-wtssw Total loading time: 0 Render date: 2024-08-18T04:06:59.538Z Has data issue: false hasContentIssue false
  • English
  • Français

A Martensite Peculiar to Thin Foils of a Ti50Ni49Fei Shape Memory Alloy

Published online by Cambridge University Press:  25 February 2011

Tsugio Tadaki ,
Sukeyoshi Yamamoto  and
Ken'ichi Shimizu
Tsugio Tadaki
Affiliation:
The Institute of Scientific and Industrial Research, Osaka University, 8–1 Mihogaoka, Ibaraki, Osaka 567, Japan
Sukeyoshi Yamamoto
Affiliation:
Sumitomo Metal Industries, Ltd., Advanced Technology Research Laboratories, 1–8 Fuso-cho, Amagasaki, Hyogo 660, Japan
Ken'ichi Shimizu
Affiliation:
The Institute of Scientific and Industrial Research, Osaka University, 8–1 Mihogaoka, Ibaraki, Osaka 567, Japan
Get access

Abstract

A peculiar martensite found in thin foils of a Ti5oNi49Fei shape memory alloy has been examined by transmission electron microscopy and electron diffraction, which was entirely different from the R phase and the B19' and B19 martensites widely known so far in the Ti-Ni based alloys. The thin foil martensite is monoclinic with a=0.700nm, b=0.994nm, c=0.632nm and γ =94.4°. The lattice correspondence between the B2 parent phase and the martensite is as follows: <210>B2→ <100>M, <230>B2→ <010>m, <002>B2→ <001>m. The formation conditions and atom positions in the unit cell of the thin foil martensite are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 246: Symposium M – Shape-Memory Materials and Phenomena--Fundamental Aspects and Applications , 1991 , 219
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Matsumoto, M. and Honma, T., Proc.ist JIM Int.Symp.Martensitic Transformations (JIMIS-l, ICOMAT-76), Kobe, Japan ( Suppl.Trans.JIM, 17)(1976), pp.199.Google Scholar
2. Hwang, C.M., Meichle, M., Salamon, M.B. and Wayman, C.M., Philos.Mag., A47, 9, 31, 177(1983).Google Scholar
3. Kudoh, Y., Tokonami, M., Miyazaki, S. and Otsuka, K., Acta Metall., 33, 2049(1985).Google Scholar
4. Shugo, Y., Hasegawa, F. and Honma, T., Bull.Res.Inst.Minerals Dress.Metall., Tohoku Univ., 37, 79(1981).Google Scholar
5. Tadaki, T. and Wayman, C.M., Metallography, 15, 247(1982).Google Scholar
6. Nam, T.H., Saburi, T. and Nenno, S., Collected Abstracts, The Annual Fall Meeting of the Japan Institute of Metals (1987), pp.323.Google Scholar