About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Microstructural modification and mechanical property optimization in Ti-5553 alloy |
| Author(s) |
Adya Charan Arohi, Indrani Sen |
| On-Site Speaker (Planned) |
Indrani Sen |
| Abstract Scope |
Ti-5Al-5V-5Mo-3Cr (Ti-5553) is a high-performance metastable β-titanium alloy candidate for landing gear and heavy structural components in aircraft due to its balanced combination of strength, ductility, and toughness. To enhance the performance of Ti-5553 alloy further, microstructural modification through unconventional stress-induced-martensitic-transformation is pursued. The as-cast Ti-5553 alloy exhibiting coarse β grains is subjected to varying degrees of cold-rolling employing 5-20% thickness reduction. With increasing deformation, increasing volume fraction of stress-induced martensitic phase is noted to form along with distinct slip mechanisms that progresses from planar to zigzag slip lines and deformation bands. These microstructural evolution enhances both local and global mechanical responses, with the highest hardness and compressive yield strength recorded in the Ti-5553 alloy that is subjected to the maximum cold-rolling. Overall, these findings provide a scope to generate detailed understanding of the processing-microstructure-property correlations for Ti-5553 alloy and depict the importance of tailored microstructure for precise industrial requirements. |