Journal
PHILOSOPHICAL MAGAZINE
Volume 89, Issue 6, Pages 535-552Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786430802613158
Keywords
titanium; Ti-5553; atom probe; phase transformation; elemental partitioning; Mo segregation
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Funding
- US Air Force Office of Scientific Research (AFOSR) [FA955006-1-0193]
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Using atom probe tomography, the partitioning of alloying elements between and in the alloy Ti metal-5553 (Ti-5Al-5Mo-5V-3Cr-0.5Fe) has been investigated as a function of heat-treatment. It has been shown that -solutionizing followed by step-quenching to a higher temperature (700C) or slow-cooling leads to substantial partitioning of the alloying elements, including an enrichment of slow-diffusing Mo at the / interfaces. In contrast, it was found that the combination of -solutionizing, quenching to room temperature and aging at 400C leads to rather limited partitioning of these alloying elements.
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