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Structure-Property Relationships and Deformation Mechanisms in an Orthorhombic Based Ti-25Al-17Nb Alloy

Published online by Cambridge University Press:  22 February 2011

B. S. Majumdar ,
C. Boehlert ,
A. K. Rai  and
D. B. Miracle
B. S. Majumdar
Affiliation:
UES, Inc., Dayton, Ohio-45432
C. Boehlert
Affiliation:
UES, Inc., Dayton, Ohio-45432
A. K. Rai
Affiliation:
UES, Inc., Dayton, Ohio-45432
D. B. Miracle
Affiliation:
Wright Laboratory Materials Directorate, WPAFB, Dayton, Ohio- 45433
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Abstract

The microstructure-property relations were evaluated for a nominally Ti-25Al-17Nb orthorhombic alloy, in terms of the deformation and failure mechanisms of the constituent ordered phases (orthorhombic, alpha-2, and B2). The mechanisms were characterized through observation of slip traces, crack initiation sites, and TEM. Properties of interest were the room temperature elongation, fatigue crack growth (FCG) resistance, and creep resistance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 1259
Copyright
Copyright © Materials Research Society 1995

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