Hostname: page-component-7bb8b95d7b-lvwk9 Total loading time: 0 Render date: 2024-09-25T10:20:33.733Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanical Properties of L12 Type Zn3Ti-Base Alloy

Published online by Cambridge University Press:  10 February 2011

Hideki Hosoda  and
Shuji Hanada
Hideki Hosoda
Affiliation:
Institute for Materials Research, Tohoku University, 2–1-1 Katahira, Aoba-ku, Sendai 980–8577, Japan, hhosoda@imr.tohoku.ac.jp
Shuji Hanada
Affiliation:
Institute for Materials Research, Tohoku University, 2–1-1 Katahira, Aoba-ku, Sendai 980–8577, Japan, hhosoda@imr.tohoku.ac.jp
Get access

Abstract

An alloy composed of L12-type Zn3Ti was investigated in terms of phase stability and mechanical properties. Zn and Ti powders were mixed at a composition of Zn-25mol%Ti using a ball mill in Ar, and an ingot was made by melting the powders. Optical microscopy, X-ray diffraction analysis and thermogravimetry - differential thermal analysis were carried out. Mechanical properties were investigated by Vickers hardness tests at room temperature (RT) and compression tests from RT to 703K in Ar. It is found that (1) the alloy is mainly composed of L12 Zn3Ti, (2) the alloy has weak positive temperature dependence of strength, and (3) normalized strength by melting point is comparable to that of L12 Al3Ti-Cr alloys. L12 Zn3Ti has HV178 and is brittle at RT. Reaction temperatures of Zn-rich portion of the Zn-Ti phase diagram were also reinvestigated and a peritectic-reaction temperature between Zn3Ti and liquid + Zn2Ti is determined to be at 880K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK7.9.1
Copyright
Copyright © Materials Research Society 1999

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. Brewer, L., LBL report 3720 Rev., 1975.Google Scholar
2. Hosoda, H., Sato, T., Tezuka, H., Mishima, Y. and Kamio, A., J. Jpn. Inst. Met., 58, 865 (1994).CrossRefGoogle Scholar
3. Massalski, T. B., Okamoto, H., Subramanian, P. R. and Kacprzak, L., Binary Alloy Phase Diagrams, 2nd edition, vol.1, (ASM International, Materials Park, OH, 1990); J. L. Murray, ibid., p. 226; p.239; p.2775; p. 3500.Google Scholar
4. Hosoda, H., Sato, T., Tezuka, H., Mishima, Y., Inoue, K., Kamio, K. and Shinoda, T., J. Jpn. Inst. Light Metals, 44, 675 (1994).CrossRefGoogle Scholar
5. Mabuchi, H. and Nakayama, Y., Bulletin Jpn. Inst. Met., 30, 24, (1991).Google Scholar
6. Yamaguchi, M. and Inui, H., Intermetallic Compounds, edited by Westbrook, J. H. and Fleischer, R. L., Vol.2 (John Wiley & Sons, Chichester, UK, 1995) p. 147.Google Scholar
7. Inoue, K., Kitamura, M., Wayman, C. M. and Chen, H., Philos. Mag. Letters, 63, 345 (1991).CrossRefGoogle Scholar
8. Raman, A. and Schubert, K., Z. Metallkde., 56, 40 (1965).Google Scholar
9. Rennhack, E. H., Trans. Met. Soc. AIME, 236, 941 (1966).Google Scholar