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ESR Refining Potential for Titanium Alloys using a CaF 2 ‐based Active Slag
Author(s) -
Stoephasius J.C.,
Reitz J.,
Friedrich B.
Publication year - 2007
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200700009
Subject(s) - titanium , scrap , refining (metallurgy) , metallurgy , materials science , impurity , aluminium , slag (welding) , titanium alloy , alloy , chemistry , organic chemistry
Since the end of the Cold War and due to the needs to produce titanium more cost‐efficient and thus more attractive for its civilian use, the electroslag remelting (ESR) process has become an increasingly important topic of international research programmes, because titanium and titanium aluminides can be chemically refined by ESR in some degree. Using ESR, titanium turnings from machining steps and scrap from foundries can be remelted, refined and provided as secondary titanium for the market at relatively favourable prices. This article investigates the removability of the main impurities out of titanium and titanium‐aluminium alloys by electroslag remelting using the active slag system CaF 2 ‐Ca‐(CaO). Thermochemical and kinetic aspects of the ESR process are considered.