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Author Brice, C.A.; Fraser, H.L. ; Lockheed Martin Aeronautics Co., The Ohio State University, Fort Worth, TX 76108, United States
Source J Mater Sci v 38 Issue:n 7 Apr 1 2003 p 1517-1521
Abstract Recent advances in manufacturing technology have led to the development of a new breed of advanced materials. These new materials are process dependent and would be difficult, if not impossible, to produce using conventional methods. Laser direct manufacturing (LDM) is a solid freeform fabrication process that enables the production of these advanced materials. LDM utilizes a high energy density heat source, powdered metal feedstock, and computer driven machine controls to produce bulk materials in near-net shape form. The combination of powdered metallurgy (P/M) and rapid solidification processing (RSP) allow bulk structures to be made with novel compositions and unique properties. In addition, near-net shape production eliminates the need for thermomechanical post-processing that can nullify some of the metallurgical advantages gained through RSP and P/M. These advantages have led to the development of alloys specifically tailored to the LDM process. This paper describes a dispersion hardened er bium-bearing titanium alloy developed to couple with the processing advantages found in the laser direct manufacturing process. [References: 10] (Auth abstract) XX