Multi-directional forge molding as a promising method of enhancement of mechanical properties of V–4Ti–4Cr alloys

• Published in: Journal of nuclear materials Vol. 413; no. 2; pp. 103 - 106
• Main Authors: Tyumentsev, A.N., Ditenberg, I.A., Grinyaev, K.V., Chernov, V.M., Potapenko, M.M.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15-06-2011; Elsevier
• ISSN: 0022-3115; 1873-4820
• DOI: 10.1016/j.jnucmat.2011.04.007

Microstructure and mechanical properties of V–4Ti–4Cr alloys subject to their thermo-mechanical processing (TMP) regimes were investigated. As a plastic deformation technique was used multiple multi-directional forge molding (MDFM) that removes restrictions on the plastic deformation value and the number of TMP cycles while the specimen shape is maintained. The use of MDFM results in finer grain size and more uniform spatial distribution of the secondary phase particles. Also it allows to form fine-crystal structural states in the final TMP stage and brings significant increase in high-temperature short-time strength of the alloy.