Phase Evolution and Spinodal Decomposition in Ti-13Mo-2Fe During Aging

Author(s)

De Mello, M. G. ; Salvador, C. A. F. ; Costa, F. H. ; Campo, K. N. ; Afonso, C. R. M. ; Cremasco, A. ; Caram, R.

• Document type: Journal article
• Source: METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE; v. 55, n. 12, p. 5-pg., 2024-10-03.

Abstract

This paper investigates the phase formation in Ti-13Mo-2Fe (wt pct) during aging. Ti-13Mo-2Fe prevented athermal omega formation after solution treatment. However, the high diffusivity of Fe favored isothermal omega formation and growth during aging. Furthermore, a secondary BCC phase was detected in the aged sample. The isothermal omega generates Mo- and Fe-enriched regions that may drive the spinodal decomposition of the parent beta at 400 degrees C. The simulation showed a good agreement with the experimental data. (AU)

• FAPESP's process: 18/18293-8 - Titanium alloys: phase transformations and additive manufacturing applied to obtaining functionally graded materials
• Grantee: Rubens Caram Junior
• Support Opportunities: Research Projects - Thematic Grants