Low carbon content NiTi shape memory alloy produced by electron beam melting

Earlier works showed that the use of electron beam melting is a viable process to produce NiTi shape memory alloy. In those works a static and a semi-dynamic processes were used producing small shell-shaped and cylindrical ingots respectively. The main characteristics of those samples were low carbo...

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Published in:Materials research (São Carlos, São Paulo, Brazil) São Paulo, Brazil), 2004-06, Vol.7 (2), p.263-267
Main Authors: Otubo, Jorge, Rigo, Odair Doná, Moura Neto, Carlos de, Kaufman, Michael Joseph, Mei, Paulo Roberto
Format: Article
Language:English
Subjects:
Electron Beam Melting
ENGINEERING, CHEMICAL
Martensitic Transformation
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
NiTi
Shape Memory
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description Earlier works showed that the use of electron beam melting is a viable process to produce NiTi shape memory alloy. In those works a static and a semi-dynamic processes were used producing small shell-shaped and cylindrical ingots respectively. The main characteristics of those samples were low carbon concentration and good composition homogeneity throughout the samples. This paper presents the results of scaling up the ingot size and processing procedure using continuous charge feeding and continuous casting. The composition homogeneity was very good demonstrated by small variation in martensitic transformation temperatures with carbon content around 0.013wt% compared to 0.04 to 0.06wt% of commercial products.
doi_str_mv 10.1590/S1516-14392004000200008
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source SciELO Brazil; IngentaConnect Journals
subjects Electron Beam Melting
ENGINEERING, CHEMICAL
Martensitic Transformation
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
NiTi
Shape Memory
title Low carbon content NiTi shape memory alloy produced by electron beam melting
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