About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering IX
|
| Presentation Title |
High-Temperature Oxidation Behavior of Ultrafast Borided Group IV Refractory Metals |
| Author(s) |
Merve Uysal Komurlu, Ali Erdemir, Ibrahim Karaman |
| On-Site Speaker (Planned) |
Merve Uysal Komurlu |
| Abstract Scope |
Improving the oxidation resistance of refractory metals is essential for their use in demanding high-temperature environments. In this study, the high-temperature oxidation behavior of ultrafast borided Group IV metals (Ti, Zr, and Hf) is systematically investigated. Dense boride layers were synthesized using an ultrafast boriding process and evaluated by non-isothermal and isothermal thermogravimetric analysis (TGA) in air. Borided titanium exhibited excellent oxidation resistance, with mass gains of ~0.7 wt.% at 800 °C, ~2.0 wt.% at 1000 °C, and ~3.8 wt.% at 1300 °C. Under non-isothermal conditions, the maximum oxidation rate decreased from 0.55 to 0.12 % min⁻¹, corresponding to an approximately 4–5fold reduction. Preliminary results for Zr and Hf also indicate improved oxidation resistance after boriding. Oxidation mechanisms and phase evolution were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and cross-sectional microstructural analysis. These findings demonstrate that ultrafast boriding is a promising surface engineering strategy. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Surface Modification and Coatings, Characterization |