Microstructure and Elevated Temperature Flow Properties of Rapidly Solidified TiAl-Base Alloys
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MICROSTRUCTURE AND ELEVATED TEMPERATURE FLOW PROPERTIES OF RAPIDLY SOLIDIFIED TiAl-BASE ALLOYS J.A: GRAVES* and A.K. GHOSH+ *Science Center, Rockwell International Corporation, 1049 Camino Dos Rios, Thousand Oaks, CA 91360 +Dept. of Materials Science and Engineering, Univ. of Michigan, Ann Arbor, MI 48109
ABSTRACT Rapid solidification processing (RSP) of TiAl-base alloys often results in the formation of metastable crystalline products (e.g., Ti Al) A key parameter controlling both the solidification pathway and the stability of the metastable structure is alloy chemistry. This study focuses upon the influence of minor alloy additions on the microstructure and properties of Ti 52 Al 4 alloys produced by RSP . While alloys having minor Ta addi ions (
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