Titanium Bronze (Ti75/Cu25) Powder is an advanced titanium–copper alloy powder that combines high strength, corrosion resistance, and biocompatibility, making it suitable for a broad range of scientific and industrial applications. The alloy’s microstructure and mechanical behavior are primarily governed by the formation of intermetallic compounds such as Ti₂Cu, CuTi₂, and Ti₃Cu₄, which impart superior mechanical strength and chemical stability (Dong et al., 2018; Shichalin et al., 2022).
Material Overview
Physically, Ti75/Cu25 powder exhibits exceptional mechanical strength and hardness, with compressive yield strengths reaching approximately 1593 MPa and ultimate compressive strengths exceeding 2400 MPa. The material maintains a fracture strain of up to 26.8%, reflecting a desirable balance of strength and ductility (Dong et al., 2018). The dominant Ti₂Cu and α-Ti phases ensure isotropic properties, contributing to enhanced wear resistance and stability under mechanical stress. Chemically, the alloy demonstrates excellent corrosion resistance, particularly in acidic environments, due to the formation of stable titanium–copper intermetallic compounds. Its electrical conductivity, reaching up to 33% IACS, allows Ti75/Cu25 to perform effectively in both structural and functional roles (Arkusz et al., 2024).
The alloy’s resistance to oxidation and microbial activity is enhanced by the presence of copper, which introduces antibacterial properties while maintaining biocompatibility — a key factor in medical and biosensing applications. Its microstructural uniformity and phase stability are typically achieved through spark plasma sintering (SPS) and powder metallurgy (PM) techniques (Shichalin et al., 2022).
Processing and Microstructure
Ti75/Cu25 powder is typically synthesized and consolidated using powder metallurgy routes such as mechanical alloying, hot pressing, and spark plasma sintering. These methods allow for precise control of the microstructure and the formation of the desired Ti–Cu intermetallic phases. During sintering, compounds like CuTi₂, TiCu, and Ti₃Cu₄ form, imparting high mechanical integrity and corrosion resistance (Баглюк et al., 2025). Advanced techniques such as plasma metal deposition (PMD) are also being employed to produce components with equiaxed grain structures and isotropic mechanical properties (Staufer et al., 2024).
Applications and Advantages
Biomedical applications. Ti75/Cu25’s combination of biocompatibility and antibacterial performance makes it ideal for dental implants, orthopedic devices, and prosthetic components. Its corrosion resistance ensures long-term stability in physiological environments (Shichalin et al., 2022).
Aerospace and industrial engineering. The alloy’s high strength-to-weight ratio and oxidation resistance make it a strong candidate for aerospace components and structural parts subjected to mechanical and thermal stress. PMD technology enables the fabrication of near-net-shape components with consistent mechanical performance (Staufer et al., 2024).
Electronics and sensing technologies. Due to its high electrical conductivity and chemical stability, Ti75/Cu25 is suitable for biosensors and conductive coatings. Its resistance to surface degradation enhances reliability in corrosive or high-moisture environments (Arkusz et al., 2024).
Performance Benefits
- Compressive strength exceeding 2400 MPa with high ductility.
- Excellent corrosion and oxidation resistance in acidic media.
- Electrical conductivity up to 33% IACS.
- Intrinsic antibacterial and biocompatible characteristics.
- High thermal and mechanical stability in demanding environments.
Goodfellow Availability
Goodfellow supplies Titanium Bronze (Ti75/Cu25) Powder for advanced research and industrial applications. Available in a range of particle size distributions, this alloy is ideal for use in additive manufacturing, biomedical device fabrication, and high-strength, corrosion-resistant components.
Explore Titanium Bronze (Ti75/Cu25) Powder and related titanium–copper alloys in Goodfellow’s online catalogue: Goodfellow product finder.
References
- Dong, R., Zhu, W., Zhao, C., Zhang, Y., & Ren, F. (2018). Microstructure, Mechanical Properties, and Sliding Wear Behavior of Spark Plasma Sintered Ti–Cu Alloys. Metallurgical and Materials Transactions A. https://doi.org/10.1007/S11661-018-4953-0
- Shichalin, O. O., Sakhnevich, V. N., Buravlev, I. Yu., Lembikov, A. O., Buravleva, A. A., Azon, S. A., Yarusova, S., Danilova, S. N., Fedorets, A. N., Belov, A. A., & Papynov, E. K. (2022). Synthesis of Ti–Cu Multiphase Alloy by Spark Plasma Sintering: Mechanical and Corrosion Properties. Superalloys. https://doi.org/10.3390/met12071089
- Баглюк, Г. А., Voropaiev, V., Fedoran, Yu. O., & Molyar, O. H. (2025). Features of Structure Formation and Properties of Cast Titanium Bronzes Obtained Using Thermally Synthesized Powder Ligatures. Metaloznavstvo Ta Obrobka Metalìv. https://doi.org/10.15407/mom2025.02.024
- Staufer, E., Edtmaier, C., Ballok, E., Horky, J., Klein, T., Zhang, D., Easton, M., & Schmitz-Niederau, M. (2024). Development of High Strength Ti–Cu Based Alloys with Equiaxed Grain Growth Produced via Plasma Metal Deposition. https://doi.org/10.59499/ep246278391
- Froes, F. H. (Sam). (n.d.). Titanium Powder Metallurgy: A Review – Part 1. https://doi.org/10.31399/asm.amp.2012-09.p016
- Arkusz, K., Pasik, K., Nowak, M., & Jurczyk, M. U. (2024). Structural, Electrical and Corrosion Properties of Bulk Ti–Cu Alloys Produced by Mechanical Alloying and Powder Metallurgy. Materials. https://doi.org/10.3390/ma17071473