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Microstructure of Rapidly Solidified W-Ni Alloys

Published online by Cambridge University Press:  26 February 2011

Dinko Vujic ,
Sung H. Whang  and
Sheldon Cytron
Dinko Vujic
Affiliation:
Polytechnic University, 333 Jay Street, Brooklyn, N.Y. 11201
Sung H. Whang
Affiliation:
Polytechnic University, 333 Jay Street, Brooklyn, N.Y. 11201
Sheldon Cytron
Affiliation:
U.S. Army Research Labs, Dover, N.J. 07801
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Abstract

Binary W-Ni alloys of four different compositions were rapidly quenched into thin foils. Microstructures and hardnesses of the as-quenched alloys were studied by TEM and hardness measurements. The results from the microstructural study show that the W grains and particles undergo extensive refinement and that the grain size is much smaller than that obtained in conventional alloys. In addition, the formation of WNi and W2Ni, the low melting temperature intermetallic compounds in the W-Ni system, was readily suppressed by rapid quenching. The hardness increase in rapidly solidified W-Ni alloys appears to have originated from the microstructural refinement.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 80: Symposium G – Science and Technology of Rapidly Quenched Alloys , 1986 , 307
Copyright
Copyright © Materials Research Society 1987

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