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A novel process for breakdown forging of coarse-grain intermetallic alloys

A novel hot forging process for the breakdown of high-temperature intermetallic alloys is developed and demnonstrated for a single- phase titanium aluminide, Ti--51Al--2Mn. In the process proposed here, the ram speed is increased substantially during the forging stroke as the material crystallizes t...

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Published in:	Scripta metallurgica et materialia 1993-11, Vol.29 (9), p.1235-1240
Main Authors:	Semiatin, S.L., McQuay, P.A., Seetharaman, V.
Format:	Article
Language:	English
Subjects:	360101 - Metals & Alloys- Preparation & Fabrication 360102 - Metals & Alloys- Structure & Phase Studies ALLOYS ALUMINIUM ALLOYS ALUMINIUM BASE ALLOYS Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology FABRICATION FORGING GRAIN SIZE HOT WORKING INTERMETALLIC COMPOUNDS MANGANESE ALLOYS MATERIALS SCIENCE MATERIALS WORKING Metals. Metallurgy MICROSTRUCTURE Other heat and thermomechanical treatments Physics RECRYSTALLIZATION SIZE TITANIUM ALLOYS Treatment of materials and its effects on microstructure and properties
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creator	Semiatin, S.L. McQuay, P.A. Seetharaman, V.
description	A novel hot forging process for the breakdown of high-temperature intermetallic alloys is developed and demnonstrated for a single- phase titanium aluminide, Ti--51Al--2Mn. In the process proposed here, the ram speed is increased substantially during the forging stroke as the material crystallizes to a finer-grained structure and its hot workability increases. As a result, fracture is avoided, the grain size is reduced, and the processing time is decreased, resulting in improved material quality and lower costs.
doi_str_mv	10.1016/0956-716X(93)90115-9
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subjects	360101 - Metals & Alloys- Preparation & Fabrication 360102 - Metals & Alloys- Structure & Phase Studies ALLOYS ALUMINIUM ALLOYS ALUMINIUM BASE ALLOYS Applied sciences Cross-disciplinary physics: materials science rheology Exact sciences and technology FABRICATION FORGING GRAIN SIZE HOT WORKING INTERMETALLIC COMPOUNDS MANGANESE ALLOYS MATERIALS SCIENCE MATERIALS WORKING Metals. Metallurgy MICROSTRUCTURE Other heat and thermomechanical treatments Physics RECRYSTALLIZATION SIZE TITANIUM ALLOYS Treatment of materials and its effects on microstructure and properties
title	A novel process for breakdown forging of coarse-grain intermetallic alloys
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