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Heat Treatments of Chromium-Manganese White Cast Irons for an Optimum Combination of Wear Resistance and Impact Strength(+)

Published online by Cambridge University Press:  21 February 2011

A. Basak ,
J. Penning  and
J. Dilewijns
A. Basak
Affiliation:
Metallurgical Engineering Department I.I.T. Kharaqpur (PIN 721302) (WB), India
J. Penning
Affiliation:
Laboratory for General Metallurgy, Ironmaking, Steelmaking and Physical Metallurgy, State University of Ghent, Sint Pietersnieuwstraat 41, B-9000 Ghent, Belgium
J. Dilewijns
Affiliation:
Laboratory for General Metallurgy, Ironmaking, Steelmaking and Physical Metallurgy, State University of Ghent, Sint Pietersnieuwstraat 41, B-9000 Ghent, Belgium
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Extract

As cast microstructures of chromium-manganese white cast iron containing about 2.5 % carbon, 0.7 % silicon, 4.5 % manganese and 11.5 % chromium reveal discontinuous plate like eutectic carbides embedded in a mainly austenitic matrix[1](Fig.1). This austenitic matrix accounts for a higher impact strength and a lower wear resistance. It has been reported elsewhere [2] that a martensitic matrix containing uniformly distributed fine alloy carbides exhibits a very good wear resistance, but lower impact strength.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 34: Symposium – Physical Metallurgy of Cast Iron , 1984 , 537
Copyright
Copyright © Materials Research Society 1985

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Footnotes

(+)

Results of work carried out in the Laboratory for General Metallurgy, Ironmaking, Steelmaking and Physical Metallurgy, State University of Ghent, Belgium.

References

REFERENCES

1. Basak, A., et al., AFS International Cast Metals Journal ,6, 12–77 (1981)Google Scholar
2. Metals Hand Book, 8th Edition, Vol.1, (ASM, Metals Park, Ohio (1961), p. 244 Google Scholar
3. Garber, M.E., et al., Russian Castings Production, 1965, 327–330Google Scholar
4. Maratray, F. and Usseglio-Nanot, R., Factors affecting the structure of chromium and chromium-molybdenum white irons, Climax Molybdenum, S.A., ParisGoogle Scholar