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Effect of Additives on Eutectoid Reaction and Mechanical Properties of Nb-Nb5Si3 Alloys

Published online by Cambridge University Press:  10 February 2011

Seiji Miura ,
Yasuhiko Saeki  and
Tetsuo Mohri
Seiji Miura
Affiliation:
Division of Materials Science and Engineering, Graduate School of Eng., Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo 060–8628, Japan.
Yasuhiko Saeki
Affiliation:
Graduate student, Division of Materials Science and Engineering, Graduate School of Engineering, Hokkaido University.
Tetsuo Mohri
Affiliation:
Division of Materials Science and Engineering, Graduate School of Eng., Hokkaido University, Kita-13, Nishi-8, Kita-ku, Sapporo 060–8628, Japan.
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Extract

For the improvement of mechanical properties, especially ductility, of intermetallic compoundbased alloys, microstructural control has been adopted to binary and higher-order systems. Although lamellar structure formed by a eutectic reaction has been attracting broad attention to ductilize alloys with a combination of brittle/ductile or brittle/brittle phases, it should be pointed out that the microstructure such as lamellar size or colony size is hard to be controlled after the solidification process. In that viewpoint, high-temperature solid-solid phase transformation provide significant advantages in handling and large super-cooling for the control of lamellar structure through eutectoid reaction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK6.9.1
Copyright
Copyright © Materials Research Society 1999

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References

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