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Cold-rolling of Ti-rich TiAl polysynthetically twinned crystals

Published online by Cambridge University Press:  31 January 2011

S. R. Nishitani ,
M. H. Oh ,
A. Nakamura ,
T. Fujiwara  and
M. Yamaguchi
S. R. Nishitani
Affiliation:
Department of Metal Science and Technology, Kyoto University, Kyoto 606, Japan, 075-753-5467
M. H. Oh
Affiliation:
Department of Metal Science and Technology, Kyoto University, Kyoto 606, Japan, 075-753-5467
A. Nakamura
Affiliation:
Department of Metal Science and Technology, Kyoto University, Kyoto 606, Japan, 075-753-5467
T. Fujiwara
Affiliation:
Department of Metal Science and Technology, Kyoto University, Kyoto 606, Japan, 075-753-5467
M. Yamaguchi
Affiliation:
Department of Metal Science and Technology, Kyoto University, Kyoto 606, Japan, 075-753-5467
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Abstract

Polysynthetically twinned crystals of TiAl with a nearly stoichiometric composition have been grown and rolled at room temperature. The maximum total reduction in thickness which is attainable without fracture depends on lamellae orientation with respect to the rolling plane and rolling direction. When specimens are oriented such that shear deformation parallel to the lamellar planes is operative during rolling and its operation causes lengthening of specimens, such specimens can be rolled up to about 50% reduction in thickness. The (111) pole figures are determined for the surface of specimens rolled to several different amounts of reduction, and the formation of surface texture is briefly discussed.

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Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 3 , March 1990 , pp. 484 - 487
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

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