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Takeyama-Kobayashi Lab
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A lab that strengthens metals to withstand the high temperatures of power plants and aircraft engines.

AboutAbout the lab
Making the metals that will support the energy of 2050.
The Kobayashi Lab studies the reliability evaluation and performance improvement of heat-resistant metallic materials used in thermal power generation and aircraft engines.
Even in a society moving toward decarbonization, thermal power generation remains indispensable, and aircraft engines are required to be more efficient than ever.
The work proceeds along three axes: changes in materials exposed to high-temperature hydrogen, creep fatigue under repeated operation, and the design of new materials.
In every study, the lab examines the fine microstructure that determines a metal's properties and traces its relationship to strength at high temperatures.
Key terms
- Creep
- A phenomenon in which a material slowly stretches and deforms when force is applied for a long time at high temperature
- Decarburization
- A phenomenon in which carbon in steel combines with hydrogen and other elements and escapes, changing the material's properties
- Gas turbine
- A machine that spins a rotor with the force of burning gas to generate power or electricity
NewsLab news
Associate Professor Kobayashi received the Technical Diligence Award from the Japan Heat Treatment Technology Association
An undergraduate student received the Best Presentation Award at the undergraduate thesis presentation session
A master's student received an Encouragement Award at the Autumn Meeting of the Iron and Steel Institute of Japan
A master's student received an Excellence Award at a conference of the Japan Heat Treatment Association
A master's student received the Best Presentation Award for master's theses
ResearchResearch themes
The lab aims to evaluate the reliability and improve the performance of heat-resistant metallic materials used in thermal power generation and aircraft engines. In all its research, it places importance on evaluating and controlling the fine microstructure that determines a metal's mechanical properties.
*Illustrative imageMaterial changes in high-temperature hydrogen
Hydrogen-production equipment and hydrogen-fired gas turbines create high-temperature hydrogen environments above 600°C. The lab broadly investigates the decarburization and the damage from methane bubbles that occur there, in materials ranging from stainless steel to Ni-based alloys.
*Illustrative imageCreep testing in hydrogen
To measure how heat-resistant materials slowly elongate in high-temperature hydrogen, the lab designed and built a creep testing machine that uses hollow specimens. It has confirmed that the way materials elongate differs between hydrogen and air.
*Illustrative imageCreep fatigue in thermal power generation
To compensate for output fluctuations of solar and wind power, thermal power plants are operated with repeated startups and shutdowns. The lab investigates the creep-fatigue damage that arises in steam pipes and other components under these conditions, and is also taking on the development of heat-resistant materials with low thermal expansion.
*Illustrative imageHigher efficiency of heat engines
Gas turbines and jet engines achieve higher thermal efficiency as the compressor pressure ratio and the turbine inlet temperature increase. The lab works on improving the performance of heat-resistant materials that can withstand such conditions.
MembersFaculty
The members of the Kobayashi Lab consist of faculty and doctoral, master's, and undergraduate students.As of 2026
- Associate ProfessorSatoru KobayashiPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Gas Turbine 4” Pro-Per Energy Services / CC BY-SA 4.0 (cropped)
- Material changes in high-temperature hydrogen: “Hydrogen Gas Cylinder is Red in Japan” Jkr2255 / CC BY-SA 3.0 (cropped)
- Creep testing in hydrogen: “Zeitstandpruefmaschinen” Michael_Schwienheer / CC BY-SA 3.0 (cropped)
- Creep fatigue in thermal power generation: “Rostock Power Station, SW view” Radomianin / CC BY-SA 4.0 (cropped)
- Higher efficiency of heat engines: “CV-990 -4 engine exhaust ( )” Bill Abbott / CC BY-SA 2.0 (cropped)
- Related lab (木村研究室): “Axial compressor rotor of a gas turbine, Deutsches Museum” Wilfredor / CC0 (cropped)
- Related lab (細田・田原研究室): “Nitinol bueroklammer verbogen” Petermaerki / CC BY-SA 3.0 (cropped)
- Related lab (中島・磯部研究室): “Kutani-Style Arita-Ware, 17th century, Japan, porcelain - Art Institute of Chicago - DSC00212” Daderot / CC0 (cropped)
- Related lab (矢野研究室): “Refractive Index of Different Glass Samples at Corning Museum of Glass” Henrysz / CC BY 4.0 (cropped)
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