Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-05T21:04:30.111Z Has data issue: false hasContentIssue false
  • English
  • Français

Crystal Structure, Phase Stability and Plastic Deformation Behavior of Ti-rich Ni3(Ti, Nb) Single Crystals with Various Long-Period Ordered Structures.

Published online by Cambridge University Press:  26 February 2011

Koji Hagihara ,
Tetsunori Tanaka ,
Takayoshi Nakano  and
Yukichi Umakoshi
Koji Hagihara
Affiliation:
Department of Materials Science and Engineering & Handai Frontier Research Center, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan
Tetsunori Tanaka
Affiliation:
Department of Materials Science and Engineering & Handai Frontier Research Center, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan
Takayoshi Nakano
Affiliation:
Department of Materials Science and Engineering & Handai Frontier Research Center, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan
Yukichi Umakoshi
Affiliation:
Department of Materials Science and Engineering & Handai Frontier Research Center, Graduate School of Engineering, Osaka University, 2–1, Yamada-oka, Suita, Osaka 565–0871, Japan
Get access

Abstract

In Ni-Ti-Nb ternary system, there are some geometrically close-packed (GCP) phases with long-period stacking sequences of a close-packed plane (CPP). Among them, our focus is on the Ni3(Ti0.90Nb0.10) crystals with Pb3Ba-type rhombohedral structure with nine-fold stacking sequence. Compression tests were conducted using the single crystals and the temperature and orientation dependences of plastic deformation behavior were investigated in comparison with those of D024-Ni3Ti crystals with the four-fold stacking sequence. The K-W locking of screw dislocation was found to occur not only in the compounds such as Ni3Al and Ni3Ti with a relatively small unit cell, but also even in complex compounds with longer-period stacking structures by slip on the common CPP in the GCP structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 842: Symposium S – Integrative and Interdisciplinary Aspects of Intermetallics , 2004 , S5.26
Copyright
Copyright © Materials Research Society 2005

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

REFERENCES

1. Yamaguchi, M. and Umakoshi, Y., Prog. Mater. Sci. 34, 1 (1990).10.1016/0079-6425(90)90002-QGoogle Scholar
2. Hagihara, K., Nakano, T. and Umakoshi, Y., Acta Mater. 48, 1469 (2000).10.1016/S1359-6454(99)00447-4Google Scholar
3. Hagihara, K., Nakano, T. and Umakoshi, Y., Acta Mater. 51, 2623 (2003).10.1016/S1359-6454(03)00060-0Google Scholar
4. Hagihara, K., Nakano, T. and Umakoshi, Y., Scripta Mater. 48, 577 (2003).10.1016/S1359-6462(02)00472-4Google Scholar
5. Tomihisa, K., Kaneno, Y. and Takasugi, T., Intermetallics 12, 317 (2004).10.1016/j.intermet.2003.11.004Google Scholar
6. Nunomura, Y., Kaneno, Y., Tsuda, H. and Takasugi, T., Intermetallics 12, 389 (2004).10.1016/j.intermet.2003.12.011Google Scholar
7. Hagihara, K., Nakano, T. and Umakoshi, Y., Sci. Tech. Adv. Mater. 3, 193 (2002).10.1016/S1468-6996(02)00008-6Google Scholar
8. Van Vucht, J. H. N., J Less-common metals, 11, 308 (1966).10.1016/0022-5088(66)90064-6Google Scholar
9. Hagihara, K., Nakano, T. and Umakoshi, Y., Mat. Res. Soc. Symp. Proc. 357, 753 (2003).Google Scholar
10. Hirth, J. P. and Lothe, J., “Theory of Dislocation (second edition)”, Krieger publishing company, Malabar Florida, p.237.Google Scholar