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Wear Properties of A Shock Consolidated Metallic Glass and Glass-Crystalline Mixtures

Published online by Cambridge University Press:  25 February 2011

Thad Vreeland Jr ,
Naresh N. Thadhani ,
Andrew H. Mutz ,
Susan P. Thomas  and
Roger K. Nibert
Thad Vreeland Jr
Affiliation:
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125
Naresh N. Thadhani
Affiliation:
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125
Andrew H. Mutz
Affiliation:
Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA 91125
Susan P. Thomas
Affiliation:
Roy C. Ingersoll Research Center, Borg-Warner Corp., Des Plaines, IL 60018
Roger K. Nibert
Affiliation:
Roy C. Ingersoll Research Center, Borg-Warner Corp., Des Plaines, IL 60018
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Abstract

Powder flakes prepared from 50 μm thick melt spun ribbons of Markomet 1064 (Ni52.5 Mo38 Cr8 B1.5 wt%) were shock consolidatedin the unannealed and annealed condition. The unannealed flakes (microhardness 933 kg/mm2) are amorphous while flakes annealed at 900ºC for 2 hours have an fcc structure with a grain size of 0.3 μm and microhardness of 800 kg/mm2. The shock consolidated amorphous powder compact (250 kJ/kg shock energy)shows no crystal peaks in an X-ray diffractometer scan. Compacts of annealed powder (400 to 600 kJ/kg shock energies) contain amorphous material (18-21%) which was rapidly quenched from the melt formed at interparticle regions during the consolidation process. The microhardness of the amorphous interparticle material is 1100 kg/mm2. Wear properties of the compacts measured in low velocity pin on disk tests show low average dynamic friction values (∿0.03). The 60 hour cumulative wear appears to correlate with the energy of shock compaction and surface porosity of the compacts rather than the metallic glass content.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 58 , 1985 , 123
Copyright
Copyright © Materials Research Society 1986

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References

REFERENCES

1.Mehra, M., PhD Dissertation, California Institute of Technology, 1984.Google Scholar
2.Morris, D.G., Metal Sci. 16, 457 (1982).Google Scholar
3.Raybould, D., J. Matl. ScT. 16, 589 (1981).Google Scholar
4.Morris, D.G., Mat. Sci. and Eng. 57, 187 (1983).Google Scholar
5.Kasiraj, P., PhD Dissertation, California Institute of Technology, 1984.Google Scholar
6.Vreeland, T. Jr, Kasiraj, P., Mutz, A.H., and Thadhani, N.N., in Proc. of Int. Conf. on Metallurgical Applications of Shock-Wave and High-Strain-Rate Phenomena, edited by Murr, LoE. (to be published by Marcel Dekker Publishing Company, New York, March 1986).Google Scholar
7.Schwarz, R., Kasiraj, P. and Vreeland, T. Jr, source cited in Ref. 6 (to be published).Google Scholar
8.Kasiraj, P., Kostka, D., Vreeland, T. Jr, and Ahrens, T.J., J. of NonCryst. Sol. 61 and 62, 967 (1984).Google Scholar
9.Vreeland, T. Jr, Kasiraj, P., and Ahrens, T.J., in Proc. of MRS Symposium on Rapidly Solidified Metastable Materials, edited by Kear, B.H. and Giessen, B.C. (Elsevier Science Publishers, New York, 1984), p. 139.Google Scholar
10.Thadhani, N.N., Mutz, A.H., Kasiraj, P., Vreeland, T. Jr, source cited in Ref. 6 (to be published).Google Scholar
11.Haviland, M.L. and Rodgers, J.T., Lubrication Engr. 17, 110 (1961).Google Scholar
12.Albertson, C. and Wolfram, G., ASLE Trans. 122, 77 (1969).Google Scholar