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Progress on Hot-Forming Techniques of High Temperature TiAl Alloys
Pages: 24-31
Year: Issue:  21
Journal: Aeronautical Manufacturing Technology

Keyword:  TiAl alloyHot-processingNear-net shape forming technique;
Abstract: γ-TiAl-based alloys have superior high temperature performances which make them to be the important candidate materials in the service temperature range of 650-900℃ for aeroengines. This paper has reviewed the current de-velopment and application of TiAl alloys, and the progresses on hot-processing techniques have been stressed in terms of ingot-melting, foundry, canned-forging and canned-extrusion, etc. Opportunities and challenges in low-costs near-net shape forming technique for TiAl alloys have been identiifed.
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