Research Meeting
Associate Professor Satoru Kobayashi organized a research session on "Reliability Assessment of Heat-Resistant Metallic Materials for the 2050 Energy Transformation" at the Japan Institute of Metals and Materials Conference.

Japan Society for the Promotion of Science
Taisei Kasuga (M2) and Shuhei Nishida (M2) gave oral presentations at the JSPS R054 Committee Research Meeting.

EPRI 2025
Associate Professor Satoru Kobayashi gave a lecture on the creep deformation of Ni-based heat-resistant alloys at the 10th International Conference on Advances in Materials, Manufacturing & Repair for Power Plants.

Doctoral Dissertation Public Hearing
Yotaro Okada gave a presentation at his doctoral dissertation public hearing with the following title:
Mechanical Properties of Microstructure Constituents and Microstructure Design in TiAl Base Alloys:  Role of β-Ti Phase and Effect of Oxygen

University Festival
We exhibited jet engine components and introduced our research at the university festival.

Laboratory Trip
From September 26-27, 2024, we went on a laboratory trip to Nasu Highlands. Activities included climbing Mount Chausu, having a BBQ, and exploring Minamigaoka Farm.

Autumn Conference
The following presentations were given at the Japan Institute of Metals and Materials Conference or the Japan Steel Institute Conference (Osaka University):
・Shuhei Nishida (M2), Satoru Kobayashi  "Effect of Ta Substitution for V on Microstructure Formation in Ta-718 Alloy"
・Haruta Sato (M1), Satoru Kobayashi, Tomoaki Hamaguchi, Nao Otaki,  "Effect of Alloying Elements on Phase Equilibria Between γ/G Phases in Austenitic Heat-Resistant Steels"

Spring Conference
The following presentations were given at the Japan Institute of Metals and Materials Conference or the Japan Steel Institute Conference (Tokyo University of Science):
・Taisei Kasuga (M1), Hirotoyo Nakashima, Satoru Kobayashi  "Phase Equilibria Between γ/G Phases in Ni-Si-X (X: Zr, Ti, Nb, Ta, W, Mo) Ternary System"
・Haruta Sato (B4), Hirotoyo Nakashima, Satoru Kobayashi  "Effect of Alloying Elements on Phase Equilibria Between γ/G Phases in Austenitic Heat-Resistant Steels"
・Boxuan Li (M2), Zhetao Yuan, Hirotoyo Nakashima, Satoru Kobayashi, Masao Takeyama
    "Effects of Grain Size and Grain Boundary Precipitates on Room Temperature Tensile Properties of Fe-Cr-Ni-Nb Based Heat-Resistant Austenitic Steels"
・Hirotoyo Nakashima, Eiji Tada, Satoru Kobayashi  "Effect of Solute Oxygen on Phase Equilibria in Ti-Al-Ni Ternary System"

Japan Society for the Promotion of Science
The following presentations were given at the JSPS R054 Research Committee Meeting (Tohoku University):
・Yuki Tsuda (M2), Satoru Kobayashi  "Microstructural Changes in Fe-Ni-Cr Alloys Due to High-Temperature Hydrogen Gas Exposure"
・Ryuichi Isomura (M2), Ryousuke Yamagata, Hirotoyo Nakashima, Satoru Kobayashi, Masao Takeyama  "Effects of Temperature and Atmosphere on Fatigue Crack Growth Behavior in TiAl Alloys"
・Hirotoyo Nakashima, Eiji Tada, Satoru Kobayashi  "Joining of TiAl Alloys Using Electrolytic Ni Plating Film"

Laboratory Trip
From September 28-29, 2023, we went on a laboratory trip to Nikko and Kinugawa. Activities included visiting Toshogu Shrine, having a BBQ, and rafting.

Autumn Conference
The following presentations were given at the 186th Japan Steel Institute Conference and the 173rd Japan Institute of Metals and Materials Conference (University of Toyama):
・Yuki Tsuda (M2) "Microstructural Changes in Fe-Ni-Based Alloys Due to High-Temperature Hydrogen Exposure"
・Shuhei Nishida (M1) "Effects of Alloying Elements on the Stability of γ-Ni(A1)/γ''-Ni₃Ta(D0₂₂) Two-Phase Microstructure"
・Satoru Kobayashi "Effects of Alloying Elements on Invar Effect in Fe-Ni-Co System and Proposal for Low Thermal Expansion Heat-Resistant Materials"
・Hirotoyo Nakashima "Phase Equilibria Among β/α/γ/τ3 Phases in the Ti-Al-Nb-Ni Quaternary System"
・Ruona Tang (M1) "Effect of Oxygen on Phase Equilibria Between α-Ti/α₂-Ti₃Al Phases"

IWTA2023
The following presentations were given at the 7th International Workshop on Titanium Aluminides held in Toulouse from June 11-16, 2023:
・Hirotoyo Nakashima "Computational Alloy Design of TiAl Alloys Applicable to Powder Processes"
・Ruona Tang (M1) "Phase Equilibria Between α-Ti/ α₂-Ti₃ Phases near 1473 K in TiAl Alloys Containing Oxygen"