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Tensile and Creep Properties of Rapidly Solidified Titanium Alloys Containing Complex Matrices and Fine Dispersoids

Published online by Cambridge University Press:  25 February 2011

M.F.X. Gigliotti ,
R.G. Rowe ,
G.E. Wasielewski ,
G.K. Scarr  and
J.C. Williams
M.F.X. Gigliotti
Affiliation:
General Electric Corporate Research and Development, Schenectady, NY
R.G. Rowe
Affiliation:
General Electric Corporate Research and Development, Schenectady, NY
G.E. Wasielewski
Affiliation:
General Electric Aircraft Engine Business Group, Evendale, OH
G.K. Scarr
Affiliation:
General Electric Aircraft Engine Business Group, Evendale, OH
J.C. Williams
Affiliation:
Carnegie-Mellon University, Pittsburgh, PA
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Abstract

Titanium alloys containing alpha matrices with various rare earth compound dispersions were prepared by melt extraction. The melt extracted material was HIPped, extruded, and thermally exposed to yield various microstructures including transformed beta and equiaxed alpha. Tensile and creep tests were conducted on material in the different microstructural conditions. Trends in mechanical behavior as a function of alloy chemistry and process history are discussed. The alloys with a transformed beta microstructure had superior creep resistance. Alloys containing dispersoids had better tensile ductilities compared with those which did not contain a dispersoid.

Portions of this work were carried out under Air Force Contract F33615-83-C-5034.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 58 , 1985 , 343
Copyright
Copyright © Materials Research Society 1986

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References

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