研究内容(~2023年度)

材料をナノスケールからマクロスケールまでの階層化された複雑な力学システムとみなし、材料力学、熱力学、機械力学等の力学をベースとして、材料の力学、相転移および組織形成に関する研究をおこなっています。

・最近の研究内容

◆生体用チタン合金の低弾性率化に関する研究

◆生体用・構造用チタン合金の相転移および力学特性に関する研究

◆マイクロメカニックス(微視的弾性理論)の構築に基づく、材料の弾性特性の解明

◆炭素繊維に対するナノ力学

◆電気化学プロセスを利用した新規組織形成

◆材料の組織形成シミュレーション

・これまでに得られた主な研究業績

β型チタン合金の相転移、弾性特性および低ヤング率化メカニズムの解明およびチタンにおけるω相単相・単結晶の弾性特性の解明               

*M. Tane, H. Nishiyama, A. Umeda, N.L. Okamoto, K. Inoue, M. Luckabauer, Y. Nagai, T. Sekino, T. Nakano, T. Ichitsubo
Diffusionless isothermal omega transformation in titanium alloys driven by quenched-in compositional fluctuations
Physical Review Materials, Vol. 3 (2019), 043604.

*M. Tane, S. Akita, T. Nakano, K. Hagihara, Y. Umakoshi, M. Niinomi, and H. Nakajima
Peculiar elastic behavior of Ti-Nb-Ta-Zr single crystals
Acta Materialia, Vol. 56, (2008), pp. 2856-2863.

*M. Tane, S. Akita, T. Nakano, K. Hagihara, Y. Umakoshi, M. Niinomi, H. Mori and H. Nakajima
Low Young's Modulus of Ti-Nb-Ta-Zr Alloys Caused by Softening in Shear Moduli c’ and c44 near Lower Limit of Body-centered Cubic Phase Stability
Acta Materialia, Vol. 58 (2010), pp. 6970-6978.

*M. Tane, T. Nakano, S. Kuramoto, M. Hara, M. Niinomi, N. Takesue,T. Yano and H. Nakajima
Low Young's Modulus in Ti-Nb-Ta-Zr-O Alloys: Cold Working and Oxygen Effects
Acta Materialia, Vol. 59 (2011), pp. 6975-6988.

*M. Tane, T. Nakano, S. Kuramoto, M. Niinomi, N. Takesue and H. Nakajima
ω Transformation in Cold Worked Ti-Nb-Ta-Zr-O Alloys with Low Body-centered Cubic Phase Stability and Its Correlation with Their Elastic Properties
Acta Materialia, Vol. 61 (2013), pp. 139-150.

*M. Tane, Y. Okuda, Y. Todaka, H. Ogi, A. Nagakubo
Elastic properties of single-crystalline ω phase in titanium
Acta Materialia, Vo. 61 (2013) pp. 7543-7554

*M. Tane, K. Hagihara, M. Ueda, T. Nakano, Y. Okuda
Elastic-modulus enhancement during room-temperature aging and its suppression in metastable Ti-Nb-based alloys with low body-centered cubic phase stability
Acta Materialia, Vol. 102 (2016), pp. 373-384.

単結晶育成を必要とせずに多結晶の弾性率から単結晶弾性率を決定可能な手法の構築

*M. Tane, K. Yamori, T. Sekino, T. Mayama
Impact of grain shape on the micromechanics-based extraction of single-crystalline elastic constants from polycrystalline samples with crystallographic texture
Acta Materialia, Vol. 122 (2017), pp. 236–251.


炭素繊維におけるナノスケールの微細構造および弾性特性の解明と炭素繊維材料に対するマイクロメカニックスモデルの構築

*M. Tane, H. Okuda, F. Tanaka
Nanocomposite microstructures dominating anisotropic elastic modulus in carbon fibers
Acta Materialia, Vol. 166 (2019), 75-84.

長周期積層構造を有するマグネシウム合金の弾性特性とその支配因子の解明および単結晶弾性率を決定するためのInverse Voigt-Reuss-Hill近似の構築

*M. Tane, Y. Nagai, H. Kimizuka, K. Hagihara, Y. Kawamura
Elastic properties of an Mg–Zn–Y alloy single crystal with a long-period stacking ordered structure
Acta Materialia, Vol. 61 (2013), pp. 6338-6351

*M. Tane, H. Kimizuka, K. Hagihara , S. Suzuki, T. Mayama , T. Sekino, Y. Nagai
Effects of stacking sequence and short-range ordering of solute atoms on elastic properties of Mg-Zn-Y alloys with long-period stacking ordered structures
Acta Materialia, Vol. 96 (2015), 170–188.

 

◆酸化物アモルファス材料、結晶化プロセス    

アモルファス酸化物の弾性挙動および過冷却液体の結晶化プロセス

*M. Tane, S. Nakano, R. Nakamura, H. Ogi, M. Ishimaru, H. Kimizuka, and H. Nakajima
Nanovoid Formation by Change in Amorphous Structure through the Annealing of Amorphous Al2O3 Thin Films
Acta Materialia, Vol. 59 (2011), pp. 4631-4640.
*M. Tane, H. Kimizuka, and T. Ichitsubo
Two distinct crystallization processes in supercooled liquid

The Journal of Chemical Physics, Vol. 144 (2016), 194505 (10 pages)

 

◆ポーラス金属の力学特性    
超音波計測による弾性率測定とマイクロメカニックスモデリング

*M. Tane, T. Ichitsubo, H. Nakajima, S. K. Hyun and M. Hirao
Elastic properties of lotus-type porous iron: acoustic measurement and extended effective-mean-field theory
Acta Materialia Vol. 52, (2004) pp. 5195-5201.
T. Ichitsubo, M. Tane, H. Ogi, M. Hirao, T. Ikeda and H. Nakajima
Anisotropic elastic constants of lotus-type porous copper: measurements and micromechanics modeling.Acta Materialia, Vol. 50, (2002), pp.4105-4115.

衝撃(高速)変形および塑性変形挙動の解明

 *M. Tane, T. Mayama, A. Oda, H. Nakajima
Effect of Crystallographic Texture on Mechanical Properties in Porous Magnesium with Oriented Cylindrical Pores
Acta Materialia, Vol. 84, (2015) 80-94.
 Y.H. Song, *M. Tane, and H. Nakajima   *Corresponding author
Peculiar Formation Mechanism of a Plateau Stress Region during Dynamic Compressive Deformation of Porous Carbon Steel with Oriented Cylindrical Pores
Acta Materialia, Vol. 60, (2012),  pp. 1149-1160.
 T. Mayama, M. Tane, and Y. Tadano 
Superior energy absorption in porous magnesium: contribution of texture development triggered by intra-granular misorientations
Acta Materialia,Vol. 165 (2019), 62-72.
 Y.H. Song, *M. Tane, and H. Nakajima  *Corresponding author
Appearance of a Plateau Stress Region during Dynamic Compressive Deformation of Porous Carbon Steel with Directional Pores
Scripta Materialia, Vol. 64, (2011), pp. 797-800.
*M. Tane, T. Kawashima, H. Yamada, K. Horikawa, H. Kobayashi and H. Nakajima
Strain-Rate Dependence of Anisotropic Compression Behavior in Porous Iron with Unidirectional Pores
Journal of Materials Research, Vol. 25, (2010), pp. 1179-1190

アコースティックエミッション法を用いた引張変形挙動の解析

 *M. Tane, R. Okamoto and H. Nakajima
Tensile Deformation of Anisotropic Porous Copper with Directional Pores
Journal of Materials Research, Vol.25, (2010), pp. 1975-1982.

降伏および塑性変形挙動の解明およびマイクロメカニックス計算(解説)

 *M. Tane, T. Ichitsubo, S. K. Hyun and H. Nakajima
Anisotropic yield behavior of lotus-type porous iron: Measurements and micromechanical mean-field analysis.
Journal of Materials Research Vol. 20, (2005) pp. 135-143.

平均場近似法(マイクロメカニックス)を用いた不均質材料の物性予測法の確立
弾性率および熱膨張率計算手法の確立

*M. Tane and T. Ichitsubo
Effective-mean-field approach for macroscopic elastic constants of composites.
Applied Physics Letters Vol. 85, (2004) pp. 197-199.
*M. Tane, S. K. Hyun and H. Nakajima
Evaluation of elastic and thermoelastic properties of lotus-type porous metals via effective-mean-field theory.
Scripta Materialia Vol. 54, (2006) pp. 545-552.

多相組織の電気伝導率計算手法の確立

*M. Tane, S. K. Hyun and H. Nakajima
Anisotropic electrical conductivity of lotus-type porous nickel.
Journal of Applied Physics Vol. 97, (2005) 103701 (4 pages).
*M. Tane and H. Nakajima
Effective-mean-field theory for electrical conductivity of multiphase composite materials.
Japanese Journal of Applied Physics Vol. 46, (2007) pp. 5221-5225.

降伏応力計算手法の確立

*M. Tane, T. Ichitsubo, M. Hirao and H. Nakajima
Extended mean-field method for predicting yield behaviors of porous materials.
Mechanics of Materials Vol. 39, (2007) pp. 53-63.

一方向凝固によるポーラス金属の作製

ガス化合物粉末を利用したポーラス金属の作製

*M. Tane and H. Nakajima
Fabrication of Porous Magnesium with Directional Pores through Use of Hydrogen Thermally Decomposed from MgH2 Powders during Unidirectional Solidification
Journal of Materials Research, Vol. 23, (2008) pp.849-855.

2相ステンレス鋼の熱脆化に伴う弾性特性変化の解明

*M. Tane, T. Ichitsubo, H. Ogi and M. Hirao
Elastic property of aged duplex stainless steel.
Scripta Materialia Vol. 48, (2003) pp. 229-234.