Beta-titanium alloys are used in many industries due to their increased elongation resulting from their BCC structure and low modulus of elasticity. However, there are many limitations to their use due to the high cost of betastabilizer elements. In this study, biocompatible Ti-Mo-Fe beta titanium alloys are designed by replacing costly betastabilizer elements (e.g., Nb, Zr, or Ta) with inexpensive Mo and Fe elements. Additionally, Ti-Mo-Fe alloys designed with different Fe contents are fabricated using powder metallurgy. Fe is a strong, biocompatible beta-stabilizer element and a low-cost alloying element. The mechanical properties of the Ti-Mo-Fe metastable beta titanium alloys are analyzed in relation to the microstructural changes. When the Fe content increases, the tensile strength and elongation decrease due to brittle fracture despite a decreasing pore fraction. It is confirmed that the hardness and tensile strength of Ti-5Mo-2Fe P/M improve to more than 360 Hv and 900 MPa, respectively.

Abstract
1. 서 론
2. 실험방법
3. 결과 및 고찰
4. 결 론
감사의 글
References

• 황효운(순천대학교 신소재공학과) | HyoWoon Hwang (Department of Materials Science and Metallurgical Engineering, Sunchon National University)
• 이용재(순천대학교 신소재공학과) | YongJae Lee (Department of Materials Science and Metallurgical Engineering, Sunchon National University)
• 박지환(㈜엠티아이지) | JiHwan Park (Material Technical Innovation Group (MTIG))
• 이동근(순천대학교 신소재공학과) | Dong-Geun Lee (Department of Materials Science and Metallurgical Engineering, Sunchon National University) Corresponding author