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Mechanical alloying and thermal analysis of Ta–Ti alloys


Tantalum–titanium alloys have widespread potential in biomedical applications due to their superior biocompatibility, favorable mechanical properties, high corrosion resistance, and ability to exhibit shape memory behavior. However, this system is plagued by processing difficulties due to significant differences in melting temperatures, specific weights, and vapor pressures of Ta and Ti. In the present study, mechanical alloying (MA) using high‐energy ball milling of Ti–xTa (where x = 50, 60, 70, and 85 wt%) was investigated. The alloyed powders were characterized by X-ray diffraction, electron microscopy (SEM and TEM), and differential scanning calorimetry. It was established that α-Ti (hcp) gradually dissolves into α-Ta (bcc), with the alloyed particles becoming chemically homogeneous as a bcc structure. This structure corresponds to a meta-stable phase and should decompose to yield two solid solutions, Ti-rich hcp and Ta-rich bcc. To overcome this thermodynamic preference, MA-generated Ta–Ti bcc solid solution powders possess relatively high internal strain energy.

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  1. Zhou YL et al (2007) Comparison of various properties between titanium-tantalum alloy and pure titanium for biomedical applications. Mater Trans 48:380–384

    Article  Google Scholar 

  2. Taddei EB, Henriques VAR, Silva CRM, Cairo CAA (2004) Production of new titanium alloy for orthopedic implants. Mater Sci Eng C 24:683–687

    Article  Google Scholar 

  3. Zhou YL, Niinomi M (2009) Ti–25Ta alloy with the best mechanical compatibility in Ti–Ta alloys for biomedical applications. Mater Sci Eng C 29–3:1061–1065

    Article  Google Scholar 

  4. Eisenbarth E, Velten D, Müller M, Thull R, Breme J (2004) Biocompatibility of β-stabilizing elements of titanium alloys. Biomaterials 24:5705–5713

    Article  Google Scholar 

  5. Zhou YL, Niinomi M (2008) Microstructures and mechanical properties of Ti–50 mass% Ta alloy for biomedical applications. J Alloys Compd 466:535–542

    Article  Google Scholar 

  6. Zhou YL, Niinomi M, Akahori T (2004) Effects of Ta content on Young’s modulus and tensile properties of binary Ti–Ta alloys for biomedical applications. Mater Sci Eng A 371:283–290

    Article  Google Scholar 

  7. Miyazaki S, Kim HY, Buenconsejo PJS (2009) In: Esomat 2009–8th European Symposium on Martensitic Transformations. doi:10.1051/esomat/200901003

  8. Zheng XH, Sui JH, Zhang X, Yang ZY, Wang HB, Tian XH, Cai W (2013) Thermal stability and high-temperature shape memory effect of Ti–Ta–Zr alloy. Scr Mater 68:1008–1011

    Article  Google Scholar 

  9. Buenconsejo PJS, Kim HY, Miyazaki S (2009) Effect of ternary alloying elements on the shape memory behavior of Ti–Ta alloys. Acta Mater 57:2509–2515

    Article  Google Scholar 

  10. Kim HY, Fukushima T, Buenconsejo PJS, Nam T, Miyazaki S (2011) Martensitic transformation and shape memory properties of Ti–Ta–Sn high temperature shape memory alloys. Mater Sci Eng A 528:7238–7246

    Article  Google Scholar 

  11. Buenconsejo PJS, Kim HY, Miyazaki S (2011) Novel β-TiTaAl alloys with excellent cold workability and a stable high-temperature shape memory effect. Scr Mater 64:1114–1117

    Article  Google Scholar 

  12. Ma J, Karaman I, Noebe RD (2010) High temperature shape memory alloys. Int Mater Rev 55:257–315

    Article  Google Scholar 

  13. Suryanarayana C (2001) Mechanical alloying and milling. Prog Mater Sci 46:1–184

    Article  Google Scholar 

  14. Joardar J, Pabi SK, Murty BS (2007) Milling criteria for the synthesis of nanocrystalline NiAl by mechanical alloying. J Alloys Compd 429:204–210

    Article  Google Scholar 

  15. Liu L, Chu ZQ, Dong YD (1992) Amorphization in an immiscible Cu-Ta system by mechanical alloying. J Alloys Compd 186:217–221

    Article  Google Scholar 

  16. Barzilai S, Nagar H, Aizenshtein M, Froumin N, Frage N (2009) Interface interaction and wetting of Sc2O3 exposed to Cu-Al and Cu-Ti melts. Appl Phys A 95–2:507

    Article  Google Scholar 

  17. Fecht HJ, Hellstern E, Fu Z, Johnson WL (1990) Nanocrystalline metals prepared by high-energy ball milling. Metall Trans A 21–9:2333

    Article  Google Scholar 

  18. Zhao YH, Sheng HW, Lu K (2001) Microstructure evolution and thermal properties in nanocrystalline Fe during mechanical attrition. Acta Mater 49:365–375

    Article  Google Scholar 

  19. Murray JL (1990) Ta-Ti. In: Massalski TB (ed) Binary alloy phase diagrams, 2nd edn, vol 3. ASM International, Materials Park, OH, p 3430

  20. Maykuth DJ, Ogden HR, Jaffee RI (1953) Titanium-Tungsten and Titanium-Tantalum Systems, T Am I Min Met Eng 197(2):231–237

    Google Scholar 

  21. Kaufman L (1991) Coupled thermochemical and phase diagram data for tantalum based binary alloys. CALPHAD: comput Coupling, Phase Diagr Thermochem 15:243–259

    Article  Google Scholar 

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The authors thank Ms. Y. Shoval for the BET measurements and Mr. D. Noyman for his technical assistance. This work was partially supported by the FP7-PEOPLE-2012-CIG (Grant 321838-EEEF-GBE-CNS).

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Barzilai, S., Hayun, S. Mechanical alloying and thermal analysis of Ta–Ti alloys. J Mater Sci 50, 6833–6838 (2015).

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  • Differential Scanning Calorimetry
  • Milling
  • Mechanical Alloy
  • Sc2O3
  • Mechanical Alloy Process