Deoxidation of Ti Melt by Newly Developed Two-Step Plasma Arc Melting Process Using Hydrogen

A two-step plasma arc melting process, comprising a first step under Ar-30 pct H 2 gas flow and the second step under Ar gas flow, has been newly developed for the deoxidation of Ti melts. The oxygen content after this process depended on the depth probed in the Ti melt. Decrease in the oxygen conte...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2019-08, Vol.50 (4), p.1553-1558
Main Authors: Watanabe, Masahito, Sato, Fumiya, Abe, Raiki, Ueda, Kyosuke, Matsuwaka, Daisuke, Kudo, Fumiaki, Narushima, Takayuki
Format: Article
Language:English
Subjects:
Argon
ARGON 30
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Deoxidizing
Electric arc melting
GAS FLOW
HYDROGEN
MATERIALS SCIENCE
MELTING
Melts
Metallic Materials
Nanotechnology
OXYGEN
Oxygen content
PLASMA
Plasma arc melting
PROBES
REDUCTION
Structural Materials
SURFACES
Surfaces and Interfaces
Thin Films
TITANIUM
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Summary:A two-step plasma arc melting process, comprising a first step under Ar-30 pct H 2 gas flow and the second step under Ar gas flow, has been newly developed for the deoxidation of Ti melts. The oxygen content after this process depended on the depth probed in the Ti melt. Decrease in the oxygen content from 1.5 to 0.7 mass pct in the surface region of the Ti melt occurred in the second step.
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-019-01608-x