Rmi Titanium Company

Richard L Porter

Kuang-O Yu

Ronald W Schutz

Frank P Spadafora

An improved process for successful and homogeneous incorporation of ruthenium and iridium into titanium and titanium alloy melts, ingots, and castings via traditional melting processes (e.g., VAR and cold-hearth) has been developed. This result is achieved through the use of low-melting point Ti-Ru or Ti&mdash;Ir binary master alloys within the general composition range of &lE;45 wt. % Ru and with a preferred composition of Ti-(15-40 wt. % Ru), or within the general composition range of &lE;61 wt. % Ir and with a preferred composition of TI-(20-58 wt. % Ir). Primary features are its lower melting point than pure titanium, lower density than pure Ru and Ir metals, and the ability to be readily processed into granular or powder forms.

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Boardman, OH, United States of America

Richard L Porter