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Plasticity Induced Transformation in a metastable β Ti-1023 alloy by controlled heat treatments

AuthorsNeelakantan, S.; San-Martín, D. CSIC ; Rivera-Díaz del Castillo, P.E.J.; Zwaag, S. van der
Heat treatment
Martensitic transformation
Mechanical properties
Issue Date2009
PublisherW.S. Maney & Son
CitationMaterials Science and Technology 25 (11) : 1351-1358 (2009)
AbstractInvestigations into the possibility of improving the strength-ductility relation in a metastable β-titanium alloy (Ti-10V-2Fe-3Al) through plasticity induced transformation (PiTTi) have been carried out. Various heat treatments in the β and/or α+β condition were performed to study their influence on both the microstructure and solute partitioning, which eventually control the PiTTi effect. Stress-induced martensite formation promoting such effect has been observed upon compression testing for β and β+(α+β) microstructures. The stress-strain curves exhibiting stress-induced martensite show ~20% increase in strength, while still retaining a reasonable ductility level. Microstructural parameters such as grain size and solute concentration (especially V) in β have been related to the alloy’s ability to exhibit PiTTi
Publisher version (URL)http://dx.doi.org/10.1179/174328408X385773
Appears in Collections:(CENIM) Artículos
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