@article{CTT100692341,
  author = {Yilmazer  Hakan and Mitsuo niinomi and Ken Cho and Masaaki Nakai and Junko Hieda and Shigeo Sato and Yoshikazu Todaka},
  title = {Microstructural evolution of precipitation-hardened beta-type titanium alloy through high-pressure torsion},
  journal = {Acta Materialia},
  year = 2014,
}

@article{CTT100670018,
  author = {Takashi Nagoshi and Akinobu Shibata and Yoshikazu Todaka and Tatsuo Sato and Masato Sone},
  title = {Mechanical behavior of a microsized pillar fabricated from ultrafine-grained ferrite evaluated by a microcompression test},
  journal = {Acta Materialia},
  year = 2014,
}

@article{CTT100678977,
  author = {Hakan Yilmazer and Mitsuo Niinomi and Masaaki Nakai and Ken Cho and Junko Hieda and Yoshikazu Todaka and T. Miyazaki},
  title = {Mechanical properties of a medical beta-type titanium alloy with specific microstructural evolution through high-pressure torsion},
  journal = {Materials science and engineering C},
  year = 2013,
}

@article{CTT100678978,
  author = {Masaaki Nakai and Mitsuo Niinomi and Junko Hieda and Hakan Yilmazer and Yoshikazu Todaka},
  title = {Heterogeneous grain refinement of biomedical Ti-29Nb-13Ta-4.6Zr alloy through high-pressure torsion},
  journal = {Scientia Iranica},
  year = 2013,
}

@article{CTT100679019,
  author = {Hakan Yilmazer and Mitsuo Niinomi and Masaaki Nakai and Junko Hieda and Yoshikazu Todaka and Toshikazu Akahori and T. Miyazaki},
  title = {Heterogeneous structure and mechanical hardness of biomedical β-type Ti–29Nb–13Ta–4.6Zr subjected to high-pressure torsion},
  journal = {Journal of the Mechanical Behavior of Biomedical Materials},
  year = 2012,
}