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Deformation of a NI-AL-FE Gamma/Beta Alloy

Published online by Cambridge University Press:  26 February 2011

R. D. Field ,
D. D. Krueger  and
S. C. Huang
R. D. Field
Affiliation:
GE Aircraft Engines, 1 Neumann Way, Cincinnati, OH, 45215
D. D. Krueger
Affiliation:
GE Aircraft Engines, 1 Neumann Way, Cincinnati, OH, 45215
S. C. Huang
Affiliation:
GE Corporate Research and Development Laboratories, PO Box 8, Schenectady, NY, 12301
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Abstract

Room temperature tensile tests were performed on annealed melt-spun ribbons of a 50Ni-20Al-30Fe alloy. The ribbons were found to possess a duplex structure consisting of fcc γ and B2 β grains and exhibited tensile elongations in excess of 10% while still maintaining good strength. The tested specimens were found to contain high dislocation densities in both the γ and β grains, with no indications of stress-induced martensite formation. Dislocation analysis revealed that the vast majority of dislocations in the β have <100> Burgers vectors; however, <111> dislocations were also observed. Slip transfer was often facilitated by specific orientation relationships between the γ and β grains.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 133: Symposium H – High-Temperature Ordered Intermetallic Alloys III , 1988 , 567
Copyright
Copyright © Materials Research Society 1989

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References

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