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Comparison of Rapidly Solidified Nickel Base Superalloys Prepared by Melt Spinning and Plasma Deposition

Published online by Cambridge University Press:  21 February 2011

A.I. Taub
Affiliation:
General Electric Corporate Research and DevelopmentPO Box 8, Schenectady, NY 12301
M.R. Jackson
Affiliation:
General Electric Corporate Research and DevelopmentPO Box 8, Schenectady, NY 12301
S.C. Huang
Affiliation:
General Electric Corporate Research and DevelopmentPO Box 8, Schenectady, NY 12301
E.L. Hall
Affiliation:
General Electric Corporate Research and DevelopmentPO Box 8, Schenectady, NY 12301
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Abstract

The microstructure and yield strength of two nickel base superalloys prepared by melt spinning and plasma deposition are compared in the as-solidified condition and after annealing. The results support the interpretation of the yield strengths obtained by tensile testing melt spun ribbon as representative of the values obtained for bulk specimens with equivalent microstructures. The effectiveness of grain size strengthening in a nickel base superalloy is also examined. The Hall-Petch relation appears to be obeyed, with a slope k = .77±.15 MPa−m1/2.

Type
Research Article
Copyright
Copyright © Materials Research Society 1984

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References

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