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Development of Tungsten Heavy Alloy with Hybrid Structure for Kinetic Energy Penetrator

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Abstract:

A new tungsten heavy alloy with hybrid structure was manufactured for the kinetic energy penetrator. The tungsten heavy alloy is composed of two parts: core region is molybdenum added heavy alloy to promote the self-sharpening; outer part encompassing the core is conventional heavy alloy to sustain severe load in a muzzle during firing. The fracture surfaces of the specimen is observed after ballistic tests. The core region revealed brittle behavior with W/W inter-granular fracture which activates self-sharpening. On the other hand, outer part exhibited conventional ductile fracture mode. From ballistic test, it was found that the penetration performance of the hybrid structure tungsten heavy alloy is higher than that of conventional heavy alloy. This heavy alloy is thought to be very useful for the penetrator in the near future.

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Periodical:

Materials Science Forum (Volumes 534-536)

Pages:

1249-1252

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.534-536.1249

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Online since:

January 2007

Authors:

Woon Hyung Baek, Eun Pyo Kim, Heung Sub Song, Moon Hee Hong, Seong Lee, Young Moo Kim, Sung Ho Lee, Joon Woong Noh, Joo Ha Ryu

Keywords:

Hybrid Structure, Penetrator, Tungsten Heavy Alloy

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] P.K. Johnson: Inter. Defense Review, Vol. 5 (1983), p.643.

Google Scholar

[2] E.C. Green, D.J. Jones and W.R. Pitkin: 28th Sympo. on Powder Metallurgy, special report No. 58 (1954), p.253.

Google Scholar

[3] L.S. Magness: Proc. the 1st Inter. Conf. on Tungsten and Tungsten Alloys, edited by A. Bose and R.J. Dowding (1992), p.15.

Google Scholar

[4] M.H. Hong, J.W. Noh, W.H. Baek, E.P. Kim, H.S. Song and S. Lee: Metall. Trans. B, Vol. 28B (1997), p.835.

Google Scholar

[5] E.P. Kim, M.H. Hong, W.H. Baek, and I.H. Moon: Metall. Trans. A, Vol. 30A (1999), p.627.

Google Scholar

[6] K.J. Park, S.H. Lee, W.H. Baek, J.W. Noh, H.S. Song, M.H. Hong, S. Lee, E.P. Kim, J.W. Suh: Korean Patent 257, 463 (2000).

Google Scholar

[7] D.K. Kim, S.H. Lee and H. S . Song: Metals and Materials, Vol. 5 (1999), p.211.

Google Scholar

[8] E.P. Kim, H.S. Song, I.H. Moon: J. of Korean Institute of Metals and Materials, Vol. 36 (1998), p.901.

Google Scholar