Influence of β-phase stability in elemental blended Ti-Mo and Ti-Mo-Zr alloys

Prakash Mohan; Dipen Kumar Rajak; Catalin I Pruncu; Ajit Behera; Vicente Amigó-Borrás; Abou Bakr Elshalakany

doi:10.1016/j.micron.2020.102992

Influence of β-phase stability in elemental blended Ti-Mo and Ti-Mo-Zr alloys

Micron. 2021 Mar:142:102992. doi: 10.1016/j.micron.2020.102992. Epub 2020 Dec 3.

Authors

Prakash Mohan¹, Dipen Kumar Rajak², Catalin I Pruncu³, Ajit Behera⁴, Vicente Amigó-Borrás¹, Abou Bakr Elshalakany⁵

Affiliations

¹ Department of Production and Industrial Engineering, Polytechnic University of Valencia, Valencia, 46022, Spain.
² Department of Mechanical Engineering, Sandip Institute of Technology and Research Centre, Nashik, 422213, India. Electronic address: dipen.pukar@gmail.com.
³ Department of Mechanical Engineering, Imperial College London, Exhibition Rd., London, SW7 2AZ, UK; Design, Manufacturing & Engineering Management, University of Strathclyde, Glasgow, G1 1XJ, Scotland, UK. Electronic address: catalin.pruncu@starth.ac.uk.
⁴ Department of Metallurgical & Materials Engineering, National Institute of Technology, Rourkela, 769008, India.
⁵ Production Engineering and Printing Technology Department, Akhbar El Yom Academy, Giza, Egypt; Mechatronics Technology Program, New Cairo Technological University NCTU, 5th Settlement, Egypt.

PMID: 33333416
DOI: 10.1016/j.micron.2020.102992

Abstract

This paper investigated the improvement of mechanical properties for one of the most used biomaterials, titanium-based alloy. To improve its mechanical properties, molybdenum was chosen to be added to Ti and Ti-Zr alloys through a mechanical blending process. After homogenization of Ti (12, 15) Mo and Ti (12, 15) Mo-6 Zr, the compaction pressure and sintering temperature were varied to create pellets. Characterization has been done using scanning electron microscopy (SEM), X-ray diffraction (XRD), Vickers's hardness, Archimedes test and ultrasonic method, and 3-point bending test. Micrograph of each pellet revealed the influence of Mo content that plays a prominent role in the variation of microstructure in the alloys Ti-Mo and Ti-Zr-Mo. The porosity and density were also influenced by changing the β-phase. EBSD analysis shows the increase in β-phase with the addition of Zr. The overall results indicated that the percentage of β-phase greatly affects the mechanical properties for the specimens.

Keywords: Elemental blend; Mo-Ti; Mo-Ti-Zr; β-Phase stability.