Hostname: page-component-76fb5796d-22dnz Total loading time: 0 Render date: 2024-04-25T13:41:28.186Z Has data issue: false hasContentIssue false
  • English
  • Français

Bulk processing of high-performance nanocrystalline intermetallics

Published online by Cambridge University Press:  31 January 2011

C. H. Shang ,
R. C. Cammarata ,
C. Van Heerden ,
T. P. Weihs  and
C. L. Chien
C. H. Shang
Affiliation:
Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21212
R. C. Cammarata
Affiliation:
Department of Materials Science and Engineering and Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland 21212
C. Van Heerden
Affiliation:
Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21212
T. P. Weihs
Affiliation:
Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21212
C. L. Chien
Affiliation:
Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21212
Get access

Abstract

We present an inexpensive, bulk-processing technique for the mass fabrication of a high-performance, nanocrystalline intermetallic with no internal flaws: the recrystallization of plastically deformed ingots through controlled heat treatments. We demonstrate that FeCo alloys with average grain sizes of 100 nm can be produced using this method. The nanocrystalline materials have tensile yield strengths as high as 2.2 GPa and have plastic tensile ductilities over 1.3%. Such superior properties at room temperature are currently unattainable when nanocrystalline materials are prepared by other methods.

Type
Rapid Communications
Information
Journal of Materials Research , Volume 18 , Issue 9 , September 2003 , pp. 2017 - 2020
Copyright
Copyright © Materials Research Society 2003

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.Gleiter, H., Prog. Mater. Sci. 33, 223 (1989); Suryanarayan, C., Int. Mater. Rev. 40, 41 (1995).CrossRefGoogle Scholar
2.Bohn, R., Haubold, T., Birringer, R., and Gleiter, H., Scripta Metall. Mater. 25, 811 (1991).CrossRefGoogle Scholar
3.McFadden, S.X., Mishra, R.S., Valiev, R.Z., Zhiyaev, A.P., and Mukherjee, A.K., Nature 398, 684 (1999).CrossRefGoogle Scholar
4.Lu, L., Sui, M.L., and Lu, K., Science 287, 1463 (2000); Lu, L., Wang, L.B., Ding, B.Z., and Lu, K., J. Mater. Res. 15, 270 (2000).CrossRefGoogle Scholar
5.Koch, C.C., Morris, D.G., Lu, K., and Inoue, A., Mater. Res. Bull. 24(2), 54 (1999).CrossRefGoogle Scholar
6. Dr. Mel Jackson, General Electric Research and Development Center, personal communication.Google Scholar
7.Yoshizawa, Y., Oguma, S., and Yamauchi, K.J., J. Appl. Phys. 64, 6044 (1988).CrossRefGoogle Scholar
8.Smirnova, N.A., Levit, V.I., Pilyugin, V.I., Kuznetsov, R.I., Davydova, L.S., and Sazonova, V.A., Fiz. Met. Metalloved. 61, 1170 (1986).Google Scholar
9.Morris, M.A. and Leboeuf, M., Mater. Sci. Eng., A 224, 1 (1997).CrossRefGoogle Scholar
10.Fan, C. and Inoue, A., Mater. Trans., JIM 38, 1040 (1997); Fan, C. and Inoue, A., Mater. Sci. Eng. 39, 9 (1998).CrossRefGoogle Scholar
11. M.S. Masteller, Carpenter Technology Corporation, Reading, PA, Data sheet for Hiperco alloys and private communication (Hiperco is a registered trademark of CRS Holdings, Inc.); Shang, C.H., Cammarata, R.C., Weihs, T.P., and Chien, C.L., J. Mater. Res. 15, 835 (2000).CrossRefGoogle Scholar
12.Rajkovic, M. and Buckley, R.A., Met. Sci. 15, 21 (1981).CrossRefGoogle Scholar
14.Baker, I., Intermetallics, 8, 1183 (2000); Cahn, R.W. in High Temperature Aluminides and Intermetallics, edited by Whang, S.H., Liu, C.T., Pope, D., and Stiegler, J.O. (TMS, Warrendale, PA, 1990) p. 245.Google Scholar
15.Dieter, G.E., Mechanical Metallurgy (McGraw-Hill, New York, 1986), p. 231.Google Scholar
16.Bever, M.B., Holt, D.L., and Titchene, A.L., Prog. Mater Sci. 17, 5 (1972).CrossRefGoogle Scholar
17.Kenneth, R.M., Introduction to Materials Science and Engineering (John Wiley & Sons, New York, 1976), pp. 325–361; F.J. Humphreys and M. Hatherly, Recrystallization and Related Annealing Phenomena (Pergamon, New York, 1995).Google Scholar