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Indexed by:期刊论文

Date of Publication:2008-01-01

Journal:JOURNAL OF MATERIALS SCIENCE

Included Journals:SCIE、EI

Volume:43

Issue:1

Page Number:218-221

ISSN No.:0022-2461

Abstract:Ti(70.5)Fe(29.5) alloy is synthesized using laser-induced self-propagating reaction synthesis (LSRS). The product mainly consists of beta-Ti + TiFe eutectic. However, a given amount of oxygen-stabilized Ti(2)Fe phase is also found in the product due to high cooling rate and oxygen existence. The formation of the fine eutectic structure makes the alloy exhibit high hardness (9.34 GPa), high compressive strength (2609 MPa), and good relative compressibility (8.5%). The phase formation during LSRS can be divided into four stages: melting of Fe particle periphery, formation of a liquid-state Ti-Fe diffusion layer, eutectic reaction, and formation of oxygen-stabilized Ti(2)Fe phase.