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Influence of Tungsten Alloying Additions on the Mechanical Properties and Texture of Tantalum

Published online by Cambridge University Press:  25 February 2011

G.T. Gray III ,
S.R. Bingert ,
S.I. Wright  and
S.R. Chen
G.T. Gray III
Affiliation:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
S.R. Bingert
Affiliation:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
S.I. Wright
Affiliation:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
S.R. Chen
Affiliation:
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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Abstract

Tantalum, like all bcc metals, exhibits deformation behavior which is substantially influenced by alloying, temperature, and strain rate. Recently, the mechanical response, in particular the highstrain- rate response, of tantalum and tantalum alloys has received increased interest for ballistic applications. In this paper, recent results on the influence of tungsten alloying additions on the mechanical response and starting crystallographic texture of tantalum-tungsten alloys are presented. The stress-strain behavior of three tantalum alloys containing 2.5, 5, and 10 wt.% W has been investigated as a function of loading path, tension and compression, and strain rate, 10−3 to 8000 s−l The yield strength and work-hardening rate were found to increase with increasing tungsten alloying content compared to unalloyed-Ta. Based on measurements of the surface and centerline textures of the Ta-W alloys, no systematic effect of tungsten content on texture was documented. However, due to variations in mechanical behavior between through-thickness and in-plane properties the need for complete through-thickness texture measurements is indicated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 322: Symposium F – High-Temperature Silicides and Refractory Alloys , 1993 , 407
Copyright
Copyright © Materials Research Society 1994

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References

1. Kock, W. and Paschen, P., JOM 41, 33 (1989).Google Scholar
2. Arsenault, R.J. and Lawley, A., in Work Hardening, edited by. Hirth, J.P. and Weertman, J.(Gordon and Breach, New York, 1968), p. 283.Google Scholar
3. Gray, G.T. III and Rollett, A.D., in High Strain Rate Behavior of Refractory Metals and Alloys, edited by. Asfhani, R., Chen, E. and Crowson, A. (TMS Society, PA, 1992) 303.Google Scholar
4. Clark, J.B., Garrett, R.K. Jr., Jungling, T.L., and Asfahani, R.I., Metall. Trans. A 23A, 2183(1992).Google Scholar
5. Clark, J.B., Garrett, R.K. Jr., Jungling, T.L., and Asfahani, R.I., Metall. Trans. A 22A, 2959 (1991).Google Scholar
6. Chou, P.C. and Grudza, M.E., in High Strain Rate Behavior of Refractory Metals and Alloys, edited by. Asfhani, R., Chen, E. and Crowson, A. (TMS Society, PA, 1992) 97.Google Scholar
7. Matthies, S. and Vinel, G. W., Phys. Stat. Sol. (b) 112, K111(1982).Google Scholar
8. Kallend, J.S., Kocks, U. F., Rollett, A. D. and Wenk, H.-R., Mat. Sci. Eng. A132, 1(1991).Google Scholar
9. Gray, G.T. III, in Modeling the Deformation of Crystalline Solids, edited by Lowe, T.C., Rollett, A.D., Follansbee, P.S., and Daehn, G.S. (TMS Society, PA, 1991) 145.Google Scholar
10. Kocks, U.F., in Proc. Conf. on Dislocations and Properties of Real Materials, (The Institute of Metals, London, Book 323, 1985) 125.Google Scholar
11. Taylor, G.I., J. Inst. Metals 62, 307 (1934)Google Scholar
12. Wright, S.I., Gray, G. T. III and Rollett, A. D., Metall. Trans. A, 1993, (submitted June 1993).Google Scholar