TANE Masakazu


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Laboratory location

Sugimoto Campus

Mail Address

E-mail address

Research Areas 【 display / non-display

Structural/Functional materials

Association Memberships 【 display / non-display





Awards & Honors 【 display / non-display

  • Honda Memorial Young Researcher Award

    2017.05   The Honda Memorial Foundation

    Winner : Masakazu Tane

  • Murakami Young Researcher Award

    2016.09   The Japan Institute of Metals and Materials

  • Excellence Award of Poster Presentation

    「Improvement of Strength of Lotus-type Porous Aluminum through ECAE process」

    2011.01   The 12th International Symposium on Eco-materials Processing and Design

    Winner : T. B. Kim, M. Tane, S. Suzuki, T. Ide, H. Utsunomiya, H. Nakajima

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Mechanical and Physical Engineering Course   Professor  

Graduate School 【 display / non-display

  • 2002.04

    Osaka University  Graduate School, Division of Engineering Science 

  • 2000.04

    Osaka University  Graduate School, Division of Engineering Science 

Graduating School 【 display / non-display

  • 1996.04

    Osaka University   Faculty of Engineering Science  


Published Papers 【 display / non-display

  • Elastic isotropy originating from heterogeneous interlayer elastic deformation in a Ti3SiC2 MAX phase with a nanolayered crystal structure

    Ruxia Liu, Masakazu Tane, Hajime Kimizuka, Yuji Shirakami, Ken-ichi Ikeda, Seiji Miura, Koji Morita, Tohru S. Suzuki, Yoshio Sakka, Lianmeng Zhang, Tohru Sekino

    Elsevier BV Journal of the European Ceramic Society  41 ( 4 ) 2278 - 2289 2021.04  [Refereed]


  • Evolution of microstructure and variations in mechanical properties accompanied with diffusionless isothermal ω transformation in β-titanium alloys

    Norihiko L. Okamoto, Shuhei Kasatani, Martin Luckabauer, Robert Enzinger, Satoshi Tsutsui, Masakazu Tane, Tetsu Ichitsubo

    American Physical Society (APS) Physical Review Materials  4 ( 12 )  2020.12  [Refereed]


  • Effects of solute oxygen on kinetics of diffusionless isothermal ω transformation in β-titanium alloys

    Norihiko L. Okamoto, Shuhei Kasatani, Martin Luckabauer, Masakazu Tane, Tetsu Ichitsubo

    Elsevier BV Scripta Materialia  188   88 - 91 2020.11  [Refereed]


  • Nanocomposite microstructures dominating anisotropic elastic modulus in carbon fibers (vol 166, pg 75, 2019)

    Tane Masakazu, Okuda Haruki, Tanaka Fumihiko

    ACTA MATERIALIA  172   200 - 201 2019.06  [Refereed]


  • Diffusionless isothermal omega transformation in titanium alloys driven by quenched-in compositional fluctuations

    Masakazu Tane, Hiroki Nishiyama, Akihiro Umeda, Norihiko L. Okamoto, Koji Inoue, Martin Luckabauer, Yasuyoshi Nagai, Tohru Sekino, Takayoshi Nakano, Tetsu Ichitsubo

    AMER PHYSICAL SOC PHYSICAL REVIEW MATERIALS  3 ( 4 ) 043604 2019.04  [Refereed]

     View Summary

    In titanium alloys, the omega(hexagonal)-phase transformation has been categorized as either a diffusion-mediated isothermal transformation or an athermal transformation that occurs spontaneously via a diffusionless mechanism. Here we report a diffusionless isothermal omega transformation that can occur even above the omega transformation temperature. In body-centered cubic beta-titanium alloyed with beta-stabilizing elements, there are locally unstable regions having fewer beta-stabilizing elements owing to quenched-in compositional fluctuations that are inevitably present in thermal equilibrium. In these locally unstable regions, diffusionless isothermal omega transformation occurs even when the entire beta region is stable on average so that athermal omega transformation cannot occur. This anomalous, localized transformation originates from the fluctuation-driven localized softening of 2/3[111](beta) longitudinal phonon, which cannot be suppressed by the stabilization of beta phase on average. In the diffusionless isothermal and athermal omega transformations, the transformation rate is dominated by two activation processes: a dynamical collapse of {111}(beta) pairs, caused by the phonon softening, and a nucleation process. In the diffusionless isothermal transformation, the omega-phase nucleation, resulting from the localized phonon softening, requires relatively high activation energy owing to the coherent beta/omega interface. Thus, the transformation occurs at slower rates than the athermal transformation, which occurs by the widely spread phonon softening. Consequently, the nucleation probability reflecting the beta/omega interface energy is the rate-determining process in the diffusionless omega transformations.


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Books etc 【 display / non-display

  • Cellular and Porous Materials: Thermal Properties Simulation and Prediction, edited by Andreas Ochsner, Graeme E. Murch, Marcelo J. S. de Lemos

    T. Ogushi, H. Chiba, M. Tane, H. Nakajima (Part: Single Work )

    WILEY-VCH Verlag GmbH & Co. KGaA  2008.04

Review Papers (Misc) 【 display / non-display

  • Elastic properties of titanium and titanium alloys

    Masakazu Tane

    Journal of The Japan Institute of Light Metals  2018.05  [Refereed]  [Invited]

  • Extraction of Single-crystalline Elastic Constants from Polycrystalline Samples with Crystallographic Texture

    Masakazu Tane

    Materia Japan  2017.09  [Refereed]  [Invited]


  • Impact energy absorption in porous pure Fe and steel with directional pores

    M. Tane, Y.H. Song, H. Nakajima

    Kinzoku  2016.06  [Refereed]  [Invited]

  • OS0101 Characteristics of the deformation bands formed in the LPSO phase

    HAGIHARA Koji, HONNAMI Masahito, YAMASAKI Michiaki, OKAMOTO Takuya, IZUNO Hitoshi, TANE Masakazu, NAKANO Takayoshi, KAWAMURA Yoshihito

    The Japan Society of Mechanical Engineers, The Proceedings of the Materials and Mechanics Conference  2014 ( 0 ) _OS0101 - 1_-_OS0101-2_ 2014  [Refereed]  [Invited]

     View Summary

    Formation of curious deformation bands has been reported as one of the deformation mechanisms occurring in a Mg-based long period stacking ordered (LPSO) phase. The origin of the deformation band is still unknown, and the possibility of the deformation kink band and/or the deformation twin has been discussed. To clarify this, the crystallographic nature of deformation bands formed in the LPSO phase was examined by scanning electron microscope-electron backscatter diffraction (SEM-EBSD) pattern analysis. The deformation band in the LPSO phase was found to show three arbitrariness on its crystallographic nature: an ambiguous crystal rotation axis that varied on the [0001] zone axis from band to band; an arbitral crystal rotation angle that was not fixed and showed relatively wide distributions; and a variation in crystal rotation angle depending on the position even within a deformation band boundary itself. These features were coincident with those observed in the deformation bands formed in Zn polycrystals, suggesting that the formed deformation bands in LPSO phase crystals are mainly deformation kink bands.

    DOI CiNii

  • Formation of nanoporous structures through structural change and crystallization of amorphous oxides

    R. Nakamura, M. Ishimaru, A. Hirata, K. Sato, M. Tane, H. Kimizuka, T. J. Konno, H. Nakajima

    Materia Japan  2012.03  [Refereed]  [Invited]


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Grant-in-Aid for Scientific Research 【 display / non-display

  • Peculiar phase transformation and change in mechanical properties during room-temperature aging in bcc Ti alloys

    Project/Area Number : 17H03414  Grant-in-Aid for Scientific Research(B) Representative

    Project Year :


     View Summary

    It was clarified that the formation of diffuse ω structures during aging near room temperature, which leads to an increase in elastic modulus with the aging, is caused by a diffusionless isothermal ω transformation, which is a new type of ω transformation. Furthermore, it was found that the transformation rate of the diffusionless isothermal ω transformation is dominated by two activation processes: a dynamical collapse of {111} atomic plane pairs, corresponding to the elementary process of the phase transition, and a nucleation process of ω phase. In addition, it was clarified that the diffusionless isothermal ω transformation is a peculiar local phase transition, caused by quenched-in statistical compositional fluctuations.

  • Elastic properties of Mg alloys and Mg-based intermetallic compounds whose single crystals are not easily grown

    Project/Area Number : 15K14166  Grant-in-Aid for challenging Exploratory Research Representative

    Project Year :


    Partaker : MAYAMA TSUYOSHI

     View Summary

    Inverse Self-consistent (iSC) and inverse Voigt-Reuss-Hill (iVRH ) approximations which can determine the elastic constants of single crystals from those of polycrystals were applied to pure Mg polycrystals prepared by an extrusion process, and the validity of the approximation methods was clarified. Furthermore, the iSC approximation was applied to an Mg-3 mass% Zn-1 mass% Al polycrystal, whose single crystal is difficult to grow, and its single-crystalline elastic constants were determined. In addition, an Mg-44 mass% Al alloy (Al12Mg17 compound) single crystal was grown and its elastic properties were measured using resonant ultrasound spectroscopy combined with electromagnetic acoustic resonance.

  • Development of micromechanics-based methods to extract single-crystalline elastic constants from polycrystalline samples and their application to metallic biomaterials

    Project/Area Number : 26709053  Grant-in-Aid for Young Scientists(A) Representative

    Project Year :


     View Summary

    An inverse self-consistent (iSC) approximation that can extract the elastic constants of single crystals from those of polycrystals, taking into account the elastic interaction between the grains, was newly developed. Also, inverse Voigt-Reuss-Hill (iVRH) approximation that can determine the elastic constants of single crystals with various crystal structures from those of polycrystals was developed. To examine the validity of iSC and iVRH approximations, they were applied to Cu polycrystals prepared by a directional solidification method, and the validity of the developed methods was confirmed. Furthermore, in Ti-Nb-based alloy developed for biomedical applications, the elastic properties of single crystals in which ω phase or diffuse ω structure were formed within the β phase were clarified.

  • Development of Porous Implants anchored by Pores with Bone Tissue by Micromachining

    Project/Area Number : 22246089  Grant-in-Aid for Scientific Research(A) Partaker / Other

    Project Year :


    Partaker : HIGUCHI Higuchi, IDE Takuya, NAKAMURA Ryusuke, TANE Masakazu

     View Summary

    Porous implants were fabricated by micromachining, which were anchored by pores with bone tissue. Porous titanium with many surface pores was implanted into jawbones of beagle dogs. It was shown from SEM observation that new bones were intruded into the surface open pores. In order to investigate an effect of pores on the implants, torque test was carried out using porous titanium filled by resign. The torque of the porous implants is three times higher than that of nonporous ones. Thus, porous implants was effective for dental implants.

  • Development ofβ-phase Titanium Alloys with Low Young's Modulus

    Project/Area Number : 21760555  Grant-in-Aid for Young Scientists(B) Representative

    Project Year :


     View Summary

    Elastic properties of Ti-Nb-Ta-Zr alloys developed for biomedical application were investigated. It was found that shear moduli c' and c44 decrease upon cooling from room temperature, which gives rise to the low Young's modulus of polycrystals at room temperature. The formation of ω-phase changes the temperature dependence of c' and c44 and increases c' and c44 at room temperature. Therefore, the formation of ω phase increases the Young's modulus of polycrystals at room temperature. However, the formation of ω-phase in theβ-phase matrix exhibiting lowβ-phase stability and low c' and c44 does not cause a large increase of c' and c44. Thus, the small amout ofω-phase formation is useful for the control of microstructure which achieve a low Young's modulus compatible with a high strength.

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