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Cavitation-Erosion Resistance of Thick-Film Thermally Sprayed Niti

Published online by Cambridge University Press:  26 February 2011

A. Peter Jardine ,
Y. Horan  and
H. Herman
A. Peter Jardine
Affiliation:
Dept. of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794
Y. Horan
Affiliation:
Dept. of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794
H. Herman
Affiliation:
Dept. of Materials Science and Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794
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Abstract

Thermal spray technologies provide a method for depositing high temperature intermetallics. Deposits of Shape Memory Effect NiTi were produced by Electric-Arc Spraying (EAS) of NiTi wire, Vacuum Plasma Spraying (VPS) of NiTi powder, and codeposition of Ni and Ti using VPS. NiTi deposits displayed shape memory effect properties, which are highly sensitive to processing conditions. They were found to also exhibit superior cavitation-erosion resistance. Under identical cavitation erosion conditions, weight losses of 0.41, 1.65 amd 7.71 mg were found VPS, arc-sprayed and blended Ni-Ti deposits respectively. Minimal amounts of NiTi was formed from co-spraying both Ni and Ti powders onto steel substrates.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 815
Copyright
Copyright © Materials Research Society 1991

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References

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