Research field (3)：
Material fabrication and microstructure control
, Structural and functional materials
, Metallic materials
Research keywords (9)：
Ti alloy
, Ni-base superalloy
, microstructure control
, 単結晶構造
, Additive Manufacturing (Laser Powder Bed Fusion)
, phase transformation and precipitation
, high temperature deformation
, oxidation
, high temperature process
Research theme for competitive and other funds (1)：
2013 - 2016 Effect of stacking fault energy on the creep deformation of multicomponent Ni-base superalloys
Papers (79)：
Tomonori Kitashima, Takanobu Hiroto, Makoto Watanabe. Numerical analysis of Al2O3 and TiO2 growth and oxygen dissolution in a metal substrate during the isothermal oxidation of an α-Ti alloy at 973 K. Journal of Materials Research and Technology. 2024. 30. 4137-4146
Dennis Edgard Jodi, Tomonori Kitashima, Alok Singh, Makoto Watanabe. High-temperature microstructural stability of pure Ni fabricated by laser powder bed fusion using Gaussian and flat-top beam profiles. Materials Characterization. 2023. 200. 112897
L. Meng, T. Kitashima, Z. Zhao, Q. Wei, P. Lin. Effect of parent β-texture on α-texture evolution during dynamic precipitation in a continuous forging process of Ti-6Al-4V alloy. Journal of Alloys and Compounds. 2023. 947. 169425
北嶋 具教, ジョディ デニス エドガード, 廣戸 孝信, 渡邊 誠. Single-crystal structure formation of Ti-6Al-2Sn-4Zr-6Mo alloy in laser powder bed fusion and unique α variant selection after β annealing. TMS 2024 Annual Meeting (USA) Abstract. 2024
北嶋 具教, ジョディ デニス エドガード, 渡邊 誠. Effect of scan strategy on texture and single-crystal structure formations in laser powder bed fusion of pure Ni with a flat-top laser beam. TMS 2024 Annual Meeting (USA) Abstract. 2024
The effect of melt pool geometry on microstructure and crystallographic texture of Ti-6Al-2Sn-4Zr-6Mo alloy fabricated by laser powder bed fusion with a flat-top laser beam
(THERMEC' 2023 (Austria)/International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS)
Fabrication of a nickel single-crystal structure by controlling melt pool geometry in laser powder fusion with a flat-top laser beam
(THERMEC' 2023 (Austria)/International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS)
Microstructure and crystallographic texture of a near-beta titanium alloy fabricated by laser powder bed fusion with a flat-top laser beam
(Ti-2023/The 15th World Conference on Titanium (UK))
Growth behaviors of Al2O3 and TiO2 during high-temperature oxidation in the Ti-Al-O system
(Ti-2023/The 15th World Conference on Titanium (UK))
Single-crystal-structure and uniform-texture formations of cubic crystals in laser powder bed fusion
(2nd French-Japanese Workshop on Additive Manufacturing 2023)
