Influence of the phases' stabilization on corrosion behavior of novel Ti-10Mo-xZr alloys for Bio-implants applications. | ||
| International Journal of Materials Technology and Innovation | ||
| Articles in Press, Accepted Manuscript, Available Online from 26 April 2025 | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ijmti.2025.376536.1120 | ||
| Authors | ||
| Alaa Mahmoud Hussein* 1; Ahmed Awad2; Hayam Aly3; Gamal Gamal Abd ELnaser1; Tharwat Elsarag1; Shaban Abdou1 | ||
| 1Department of Production Engineering and Mechanical Design, Faculty of Engineering, Port Said University, Port Said 42526, Egypt | ||
| 2Design and Production Department, Faculty of Engineering Ain Shams University, Cairo 11535, Egypt | ||
| 3Central Metallurgical Research and Development Institute (CMRDI), Helwan 11421, Egypt | ||
| Abstract | ||
| Newly designed titanium alloys composed of vital elements are being researched to represent alternatives to commercial alloys, and Zr addition to Ti-10Mo alloy is investigated through corrosion tests in saline media. All studied alloys are in the α+β region designed using the d-orbital method after applying the equivalent Mo ([Mo]eq) concentrations equation. The microstructure analysis approved the appearance of α laths and β grains with varied percentages measured from XRD diffraction. The β phase amount in the studied alloys is inversely proportional to the corrosion rate. β phase percentages are 94.6%, 52.5% and 82.3%, opposed to corrosion rates of 0.95451× 10-3, 1.7819× 10-3, and 1.0288× 10-3 mm/year for (Ti-10Mo, Ti-10Mo-3Zr, and Ti-10Mo-6Zr) wt% alloys, respectively. These findings agree with a previous study on Ti-Mo-Zr alloys. Large difference stabled phases induce potential difference, causing micro galvanic cells to result in high corrosion as achieved in Ti-10Mo-3Zr alloy. Zr addition forms a protective layer over implant material, which influences appeared in Ti-10Mo-6Zr alloy. | ||
| Keywords | ||
| Titanium alloys; Bio-implants; Corrosion; Phases stability; Microstructural analysis | ||
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