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High Temperature Mechanical Behavior of Nb5Si3/Nb Laminates

Published online by Cambridge University Press:  22 February 2011

William Provancher  and
Amit K. Ghosh
William Provancher
Affiliation:
University of Michigan, Ann Arbor, MI 48109–2136
Amit K. Ghosh
Affiliation:
University of Michigan, Ann Arbor, MI 48109–2136
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Abstract

Two phase alloys based on the intermetallic system Nb5Si3/Nb system provide potentially superior combination of strength and toughness over their monolithic counterparts at high temperatures. To gain fundamental knowledge of the mechanical behavior of these materials, initial focus has been on the mechanical behavior of Nb5Si3/Nb laminates and composites at elevated temperatures. In this study, laminates have been fabricated at 32 at% Si with Nb, and a total laminate thickness of 2.1mm. Tests are being conducted on notched and unnotched tensile specimens. The unnotched specimens provide the overall strength and ductility of the laminate and a basis for comparison with notched specimens which provide information on crack propagation and ductile phase toughening effects. Results from samples with a variety of laminate spacings are being explored, and preliminary data will be presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 1071
Copyright
Copyright © Materials Research Society 1995

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