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Processing, microstructure, and properties of β titanium alloys modified with boron

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Abstract

The development of next-generation βTi alloys is expected to involve very attractive combinations of strength-toughness-fatigue resistance at large cross sections, improved and affordable thermomechanical processing, and enhanced elevated temperature capability. This article describes the development of βTi alloys that are modified with small boron (B) additions to achieve these goals. Two important aerospace alloys, Ti-15Mo-2.6Nb-3Al-0.2Si and Ti-5Al-5V-5Mo-3Cr microalloyed (0.1%) with B were considered. Ingots that were 70 mm in diameter and 500 mm in length were cast using induction skull melting. A detailed microstructural characterization and tensile property evaluation were conducted. Microalloying with B refines the cast grain size to about 50 µm, which enhances strength and ductility. The effect of B additions on the microstructural stability and properties in the as-cast condition was established. The implications of B additions on the microstructural evolution and affordability of subsequent processing is also discussed.

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References

  1. G. Terlinde and G. Fischer, Beta Titanium Alloys,Titanium and Titanium Alloys: Fundamentals and Applications, C. Leyens and M. Peters, Ed., Wiley-VCH Verlag GmbH, Weinheim, 2003, p 37–57

    Google Scholar 

  2. P.J. Bania, Beta Titanium Alloys and Their Role in the Titanium Industry,Beta Ti Alloys in the 1990’s, D. Eylon, R.R. Boyer, and D.A. Koss, Ed., The Materials Society, 1993, p 3–14

  3. TIMET, personal communication, 2005

  4. T.M. Godfrey, P.S. Goodwin, and C.M. Ward-Close, Titanium Particulate Metal Matrix Composites: Reinforcement, Production Methods, and Mechanical Properties,Adv. Eng. Mater., Vol 2, 2000, p 85–92

    Article  CAS  Google Scholar 

  5. Titanium-Boron: Alloys and Composites,JOM, Vol 56, 2004, p 32–63

    Google Scholar 

  6. A.E. Palty, H. Margolin, and J.P. Nielsen, Titanium-Nitrogen and Titanium-Boron Systems,Trans. ASM, Vol 46, 1954, p 312–328

    CAS  Google Scholar 

  7. S. Tamirisakandala, R.B. Bhat, D.B. Miracle, and J.S. Tiley, Microstructural Refinement in Ti Alloys Via Boron Modification, International Patent Application, filed Dec 2003

  8. R.R. Boyer, E.W. Collings, and G.E. Welsch, Ed.,Materials Properties Handbook: Titanium Alloys, ASM International, 2004

  9. A. Cibula, “The Effect of Grain Size on the Tensile Properties of High Strength Cast Aluminum Alloys,” 1949–1950, p 361–376

  10. J.L. Marray, P.K. Liao, and K.E. Spear,Binary Alloy Phase Diagrams, H. Baker, Ed., ASM International, 1992, p 285

  11. J.A. Christodoulou and H.M. Flower, The Role of Borides in Near-γ Titanium Aluminides,Adv. Eng. Mater., Vol 2, 2000, p 631–638

    Article  CAS  Google Scholar 

  12. T.T. Cheng, The Mechanism of Grain Refinement in TiAl Alloys by Boron Addition: An Alternative Hypothesis,Intermetallics, Vol 8, 2000, p 29–37

    Article  CAS  Google Scholar 

  13. S. Tamirisakandala, R.B. Bhat, J.S. Tiley, and D.B. Miracle, Grain Refinement of Cast Titanium Alloys via Trace Boron Addition,Scripts Mater., Vol 53, 2005, p 1421–1426

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Mechanical Engineering, Ohio University, 45701, Athens, OH

    Seshacharyulu Tamirisakandala

  2. UES Inc., 4401 Dayton-Xenia Road, 45432, Dayton, OH

    Radhakrishna B. Bhat

  3. Air Force Research Laboratory, Materials and Manufacturing Directorate, 45433, Wright-Patterson AFB, OH

    Jaimie S. Tiley & Daniel B. Miracle

Authors
  1. Seshacharyulu Tamirisakandala
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  2. Radhakrishna B. Bhat
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  3. Jaimie S. Tiley
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  4. Daniel B. Miracle
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Tamirisakandala, S., Bhat, R.B., Tiley, J.S. et al. Processing, microstructure, and properties of β titanium alloys modified with boron. J. of Materi Eng and Perform 14, 741–746 (2005). https://doi.org/10.1361/105994905X75547

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  • DOI: https://doi.org/10.1361/105994905X75547

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