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Wear of Ductile-Phase Toughened NiAl

Published online by Cambridge University Press:  22 February 2011

F.E. Kennedy ,
I. Baker  and
B.J. Johnson
F.E. Kennedy
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, NH 03755
I. Baker
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, NH 03755
B.J. Johnson
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, NH 03755
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Abstract

The purpose of this work was to study the effect of ductile phases on the wear of brittle intermetallic compounds. The material system of interest was NiAl with an incorporated ductile Fe phase. Three different compositions were studied: Fe10Ni45Al45, Fe30Ni35Al35, and Fe44Ni28Al28, each after two different heat treatments. Their wear behavior in unlubricated sliding against zirconia was investigated using pin-on-disk tests at room temperature in air. Hardness and fracture toughness tests were run for the same materials to clarify the relationship between wear and deformation. Results for the ductile-phase toughened materials were compared with results of similar tests for unalloyed NiAl.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 555
Copyright
Copyright © Materials Research Society 1995

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