Zircon Sand--a Viable Alternative Moulding System for Titanium Castings
Data(s) |
01/02/1991
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Resumo |
The experimental observations of casting titanium in sodium silicate bonded zircon sand mould are presented in this paper. Metal-mould reactions, in general, involved dissolution of oxides in liquid titanium resulting in contamination of the casting. Minimal metal-mould reactions occurred when titanium was cast in zircon sand mould containing about 7.5 wt% of ZrO2. It has been further shown that the metal-mould reaction is considerably reduced if moulds were fired at high temperatures (> 1273K). This ensured elimination of moisture from the mould and also resulted in some beneficial changes in the mould chemistry. The reduction in metal-mould reaction is reflected in the decrease in oxygen and hydrogen contamination and decrease in hardness. Thus microhardness profile and oxygen analysis seems to provide a good index for evaluation of severity of metal-mould reaction. The method has been demonstrated to be satisfactory for casting titanium components. |
Formato |
application/pdf |
Identificador |
Saha, RL and Mukherji, D and Misra, RDK and Jacob, KT and Nandy, TK (1991) Zircon Sand--a Viable Alternative Moulding System for Titanium Castings. In: Transactions of the Indian Institute of Metals, 44 (1). pp. 53-61. |
Publicador |
Indian Institute of Metals |
Relação |
http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=TRD&recid=199208511087MD&q=Zircon+sand+a+viable+alternative+moulding+system+for+titanium+castings&uid=790100313&setcookie=yes http://eprints.iisc.ernet.in/42670/ |
Palavras-Chave | #Materials Engineering (formerly Metallurgy) |
Tipo |
Journal Article PeerReviewed |