Role of Ti3Al/silicides on tensile properties of Timetal 834 at various temperatures

Autor:	V. P. Singh, K. V. Sai Srinadh, Nidhi Singh
Rok vydání:	2007
Předmět:	Materials science Metallurgy Alloy engineering.material chemistry.chemical_compound chemistry Mechanics of Materials Silicide Phase matrix Ultimate tensile strength engineering Heat treated General Materials Science Ductility
Zdroj:	Bulletin of Materials Science. 30:595-600
ISSN:	0973-7669 0250-4707
DOI:	10.1007/s12034-007-0094-6
Popis:	Extremely fine coherent precipitates of ordered Ti3Al and relatively coarse incoherent precipitates of S2 silicide exist together in the near α-titanium alloy, Timetal 834, in the dual phase matrix of primary α and transformed β. In order to assess the role of these precipitates, three heat treatments viz. WQ, WQ-A and WQ-OA, were given to have no precipitates, Ti3Al and silicide and only silicide precipitates in the respective conditions. Tensile properties in the above three heat treated conditions were determined at room temperature, 673 K and 873 K. It was observed that largely Ti3Al precipitates were responsible for increase in the yield strength and decrease in ductility in this alloy.
Databáze:	OpenAIRE
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