Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2025-01-05T00:39:10.436Z Has data issue: false hasContentIssue false
  • English
  • Français

On the Effect of Strain Rate and Temperature on the Yield Strength Anomaly in L21-structured Fe2AlMn

Published online by Cambridge University Press:  01 February 2011

Markus W. Wittmann ,
Janelle M. Chang ,
Yifeng Liao  and
Ian Baker
Markus W. Wittmann
Affiliation:
markus.wittmann@dartmouth.edu, Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
Janelle M. Chang
Affiliation:
Janelle.Chang@Dartmouth.edu, Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
Ian Baker
Affiliation:
ian.baker@dartmouth.edu, Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
Get access

Abstract

The effects of strain rate and temperature on the yield strength of near-stoichiometric Fe2AlMn single crystals were investigated. In the temperature range 600-800K the yield stress increased with increasing temperature, a response commonly referred to as a yield strength anomaly. No strain rate sensitivity was observed below 750K, but at higher temperatures the yield stress increased with increasing strain rate. Possible mechanisms to explaining the effects of temperature and strain rate are discussed.

Keywords

Fealloystrength
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1128: Symposium U – Advanced Intermetallic-Based Alloys for Extreme Environment and Energy Applications , 2008 , 1128-U05-09
Copyright
Copyright © Materials Research Society 2009

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. Wittmann, M, Munroe, PR, Baker, I. Philos Mag A 2004; 84: 3169 Google Scholar
2. Stoloff, NS, Davies, RG. Prog Mat Sci 1966; 13: 3.Google Scholar
3. Beauchamp, P, Dirras, G, Veyssière, P. Philos Mag A 1992; 65: 477.Google Scholar
4. Flinn, PA. Trans AIME 1960; 218: 145.Google Scholar
5. Morris, DG. Philos Mag A 1995; 71: 1281.Google Scholar
6. Yoshimi, K, Hanada, S. In: Darolia, R, editor. Structural Intermetallics. Warrendale PA: The Minerals, Metals and Materials Society 1993 p. 475.Google Scholar
7. Umakoshi, Y, Yamaguchi, M, Namba, Y, Murakami, K. Acta Metall 1976; 24: 89.Google Scholar
8. George, EP, Baker, I. Philos Mag A 1998; 77: 737.Google Scholar
9. Baker, I, Yang, Y. Mat Sci Eng 1997; 240: 109.Google Scholar
10. Yang, Y, Baker, I, Gray, GT, Cady, C. Scripta Mater 1999; 40: 403.Google Scholar
11. Li, X, Baker, I. Scripta Mater 1997; 36: 1387.Google Scholar
12. Nagpal, P, Baker, I. Metallurgical Transactions 1990; 21A: 2281.Google Scholar
13. Morris, DG, Zhao, P, Muñoz-Morris, MA. Mat Sci Eng 2001; 297: 256.Google Scholar
14. Morris, DG, Muñoz-Morris, MA. Intermetallics 2005; 13; 1269.Google Scholar
15. Prakash, U, Sauthoff, G. Intermetallics 2001; 9: 107.Google Scholar
16. Palm, M, Sauthoff, G. Intermetallics 2004; 12: 1345.Google Scholar
17. Stein, F, Schneider, A, Frommeyer, G. Intermetallics 2003; 11: 71.Google Scholar