Cost-Effective PM Ti Compositions and Processing

  • L. BolzoniEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


Titanium is the material of choice for critical and advanced applications (e.g. biomedicine and aerospace) due to both its excellent properties and high cost. Creative fabrication techniques and synthesis of alternative compositions are both aspects that could be considered to achieve more cost-affordable Ti products for its wider adoption in cost-driven industries. The aim of this work is to analyse the potential of manufacturing newly designed Ti alloys via combining near-net shape powder metallurgy processing and low-cost alloying elements. Demonstration of the feasibility and validity of the different methods proposed are addressed using diverse classes of Ti-based materials including alpha, alpha + beta, and high strength metastable beta Ti alloys. The characteristics of the microstructural features (residual porosity and phases) can be changed to adjust the mechanical response depending on the requirements. Evidences are provided that through appropriate processing these newly design cost-effective compositions could be used for structural engineering applications.


Low-cost titanium alloys Powder metallurgy Eutectoid β stabiliser Induction sintering Cost-effective 



L. Bolzoni wants to acknowledge the funding by the New Zealand Ministry of Business, Innovation and Employment (MBIE) through the TiTeNZ (Titanium Technologies New Zealand—UOWX1402) research contract. L. Bolzoni would also like to thanks Dr. Fei Yang, Dr. Stiliana Raynova, Dr. Mingtu Jia, Mr. Carlos Romero, and Mr. Qingyang Zhao for their scientific and technical contributions.


  1. 1.
    Boyer R, Welsch G, Collings EW (eds) (1998) Materials properties handbook: titanium alloys, 2nd edn. Ohio, USAGoogle Scholar
  2. 2.
    Lütjering G, Williams JC (2003) Titanium: engineering materials and processes, 1st edn. In: Derby B (ed) Springer, ManchesterGoogle Scholar
  3. 3.
    Leyens C, Peters M (2003) Titanium and titanium alloys. In: Christoph Leyens MP (ed) Fundamentals and applications. Wiley-VCH, KölnGoogle Scholar
  4. 4.
    Froes FH, Gungor MN, Imam MA (2007) Cost-affordable titanium: the component fabrication perspective. JOM 59(6):28–31CrossRefGoogle Scholar
  5. 5.
    Friedman G (1970) Titanium powder metallurgy. Int J Powder Metall 6(2):43–55Google Scholar
  6. 6.
    Goetzel CG, de Marchi VS (1971) Electrically activated pressure sintering (spark sintering) of titanium-aluminium-vanadium alloy powders. Mod Dev Powder Metall 4:127–150Google Scholar
  7. 7.
    Malik RK (1974) Hot pressing of titanium aerospace components. Int J Powder Metall Powder Technol 10(2):115–129Google Scholar
  8. 8.
    Bolzoni L, Ruiz-Navas EM, Gordo E (2017) Evaluation of the mechanical properties of powder metallurgy Ti-6Al-7Nb alloy. J Mech Behav Biomed Mater 67:110–116Google Scholar
  9. 9.
    Bolzoni L, Ruiz-Navas EM, Gordo E (2014) Powder metallurgy CP-Ti performances: hydride-dehydride versus sponge. Mater Des 60:226–32Google Scholar
  10. 10.
    Bolzoni L, Ruiz-Navas EM, Gordo E (2013) Influence of sintering parameters on the properties of powder metallurgy Ti-3Al-2.5V alloy. Mater Charact 84:48–57Google Scholar
  11. 11.
    Songsiri K, Manonukul A, Chalermkarnnon P, Nakayama H, Fujiwara M (eds) (2008) Effects of sintering temperature and sintering time on mechanical and impact properties of injection moulded Ti-6Al-4V employing prealloyed and mixed powders. Adv Powder Metall Part Mater June 8–12. MPIF, Washington, D.C., USAGoogle Scholar
  12. 12.
    Ferri OM, Ebel T, Bormann R (2009) High cycle fatigue behaviour of Ti-6Al-4V fabricated by metal injection moulding technology. Mater Sci Eng, A 504(1–2):107–113CrossRefGoogle Scholar
  13. 13.
    Holm M, Ebel T, Dahms M (2013) Investigations on Ti-6Al-4V with gadolinium addition fabricated by metal injection moulding. Mater Des 51(5):943–948CrossRefGoogle Scholar
  14. 14.
    Kim KT, Yang HC (2001) Densification behavior of titanium alloy powder during hot pressing. Mater Sci Eng, A 313(1–2):46–52CrossRefGoogle Scholar
  15. 15.
    Bolzoni L, Ruiz-Navas EM, Gordo E (2012) Influence of vacuum hot-pressing temperature on the microstructure and mechanical properties of Ti-3Al-2.5V alloy obtained by blended elemental and master alloy addition powders. Mater Chem Phys 137:608–616Google Scholar
  16. 16.
    Bolzoni L, Montealegre Meléndez I, Ruiz-Navas EM, Gordo E (2012) Microstructural evolution and mechanical properties of the Ti-6Al-4V alloy produced by vacuum hot-pressing. Mater Sci Eng, A 546:189–197CrossRefGoogle Scholar
  17. 17.
    Kim KT, Yang HC (2001) Densification behavior of titanium alloy powder under hot isostatic pressing. Powder Metall 44(1):41–47CrossRefGoogle Scholar
  18. 18.
    Rafi HK, Karthik NV, Gong H, Starr TL, Stucker BE (2013) Microstructures and mechanical properties of Ti6Al4V parts fabricated by selective laser melting and electron beam melting. J Mater Eng Perform 22(12):3872–3883CrossRefGoogle Scholar
  19. 19.
    Huang X, Lang L, Wang G (2019) Effect of HIP Post-treatment on the HIPed Ti6Al4V powder ccompacts. Powder Metall 62(1):8–14CrossRefGoogle Scholar
  20. 20.
    Leuders S, Thöne M, Riemer A, Niendorf T, Tröster T, Richard HA et al (2013) On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: fatigue resistance and crack growth performance. Int J Fatigue 48:300–307CrossRefGoogle Scholar
  21. 21.
    Brandl E, Leyens C, Palm F (2011) Mechanical properties of additive manufactured Ti-6Al-4V using wire and powder based processes. IOP Conf Ser: Mater Sci Eng 26:012004CrossRefGoogle Scholar
  22. 22.
    Bolzoni L, Herraiz E, Ruiz-Navas EM, Gordo E (2014) Study of the properties of low-cost powder metallurgy titanium alloys by 430 stainless steel addition. Mater Des 60:628–636CrossRefGoogle Scholar
  23. 23.
    Bolzoni L, Ruiz-Navas EM, Gordo E (2017) Quantifying the properties of low-cost powder metallurgy titanium alloys. Mater Sci Eng, A 687:47–53CrossRefGoogle Scholar
  24. 24.
    Bolzoni L, Ruiz-Navas EM, Gordo E (2016) Understanding the properties of low-cost iron-containing powder metallurgy titanium alloys. Mater Des 110:317–323CrossRefGoogle Scholar
  25. 25.
    Bolzoni L (2019) Low-cost Fe-bearing powder metallurgy Ti alloys. Metal Powder Report.
  26. 26.
    Nakajima H, Yusa K, Kondo Y (1996) Diffusion of iron in a diluted [Alpha]-Ti-Fe alloy. Scripta Mater 34(2):249–253CrossRefGoogle Scholar
  27. 27.
    Nakajima H, Ohshida S, Nonaka K, Yoshida Y, Fujita FE (1996) Diffusion of iron in [Beta] Ti-Fe alloys. Scripta Mater 34(6):949–953CrossRefGoogle Scholar
  28. 28.
    Romero C, Raynova S, Yang F, Bolzoni L (2018) Ultrafine microstructures in eutectoid element bearing low-cost Ti-Fe alloys enabled by slow Bainite formation. J Alloy Compd 769:226–232CrossRefGoogle Scholar
  29. 29.
    Alshammari Y, Yang F, Bolzoni L (2019) Low-cost powder metallurgy Ti-Cu alloys as a potential antibacterial material. J Mech Behav Biomed Mater 95:232–239CrossRefGoogle Scholar
  30. 30.
    Alshammari Y, Yang F, Bolzoni L (2019) Mechanical properties and microstructure of Ti-Mn alloys produced via powder metallurgy for biomedical applications. J Mech Behav Biomed Mater 91:391–397CrossRefGoogle Scholar
  31. 31.
    Romero C, Yang F, Bolzoni L (2018) Fatigue and fracture properties of Ti alloys from powder-based processes—a review. Int J Fatigue 117:407–419CrossRefGoogle Scholar
  32. 32.
    Zhao QY, Yang F, Torrens R, Bolzoni L (2019) Evaluation of the hot workability and deformation mechanisms for a metastable beta titanium alloy prepared from powder. Mater Charact 149:226–238CrossRefGoogle Scholar
  33. 33.
    Zhao Q, Yang F, Torrens R, Bolzoni L (2019) Comparison of hot deformation behaviour and microstructural evolution for Ti-5Al-5V-5Mo-3Cr alloys prepared by powder metallurgy and ingot metallurgy approaches. Mater Des 169:107682CrossRefGoogle Scholar
  34. 34.
    Raynova S, Collas Y, Yang F, Bolzoni L (2019) Advancement in the pressureless sintering of CP titanium using high-frequency induction heating. Metall Mater Trans A 50:4732–4742Google Scholar

Copyright information

© The Minerals, Metals & Materials Society 2020

Authors and Affiliations

  1. 1.School of EngineeringUniversity of WaikatoHamiltonNew Zealand

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