Structural Metallic Materials
Processing, Micro/Nano-structures & Mechanical Properties
Physical Metallurgy & Mechanical Metallurgy

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We have published a book “The Plaston Concept” from Springer. As it is an Open Access Book, you can download it from the link shown below. “The Plaston Concept: Plastic Deformation in Structural Materials”  Editors: Isao TANAKA, Nobuhiro Tsuji, Haruyuki INUI, Springer, Singapore (2022)  ISBN 978-981-16-7714-4, 978-981-16-7715-1 (eBook) Tsuji wrote a chapter entitled "Proposing the Concept of Plaston and Strategy to Manage Both High Strength and Large Ductility in Advanced Structural Materials, on the Basis of Unique Mechanical Properties of Bulk Nanostructured Metals" in the book.

Lab Meeting
Teatime seminar by Asada (M2) and Lau (M2)
Lab Meeting
Research report by Nishikawa (B4) and Ueda (B4)
A paper shown below by Dr. Okada (NIMS) has been published in Scripta Materialia, Vol. 224.
"Improvement of resistance against hydrogen embrittlement by controlling carbon segregation at prior austenite grain boundary in 3Mn-0.2C martensitic steels"○Kazuho Okada, Akinobu Shibata, Taisuke Sasaki, Hisashi Matsumiya, Kazuhiro Hono, Nobuhiro Tsuji: Scripta Materialia, 224 (2023), No.115043​​​​​​​
Lab Meeting
Teatime seminar by Sawamura (B4) and Tokiwa (M2)
A paper shown below by Reza has been published in Acta Materialia, Vol. 243.
"Global understanding of deformation behavior in CoCrFeMnNi high entropy alloy under high-strain torsion deformation at a wide range of elevated temperatures"○Reza Gholizadeh, Shuhei Yoshida, Yu Bai, Shu Kurokawa, Akinobu Shibata, Nobuhiro Tsuji: Acta Materialia, 243 (2022), No.118514​​​​​​​.
A paper shown below by Dr. Gong has been published in Scripta Materialia, Vol. 225.
"Compressive deformation behavior of AZ31 alloy at 21K: an in-situ neutron diffraction study"○Wu Gong, Takuro Kawasaki, Ruixiao Zheng, Tsuyoshi Mayama, Binxuan Sun, Kazuya Aizawa, Stefanus Harjo, Nobuhiro Tsuji: Scripta Materialia, 225 (2023), No.115161​​​​​​​
Lab Meeting
Teatime seminar by Katayama (B4) and Dono (B4)
Lab Meeting
Research report by Yako (D1) and Chu (Visiting PhD student)
International Conference
<Invited Talk>
Tsuji gave a presentation entitled "Mesoscopic nature of serration behavior in high-Mn austenitic steel" in the 6th International Symposium on Advanced Structural Materials in Chongqing University.


We are studying nano/micro-structure control and mechanical properties of advanced structural metallic materials. Structural materials provide superior mechanical properties and are indispensable for safety and progress of society. We try to clarify the formation mechanisms of nano/micro-structure through phase transformation, precipitation, recrystallization and severe plastic deformation, and to correlate the obtained structures with their strength, ductility and fracture behavior fundamentally. Especially, we have been one of the world-leading groups on bulk nanostructured metals. We endeavor to make the atmosphere where young students and researchers can independently develop their ability through frontier research. With diverse members including international students and researchers, we have been energetically carrying out research activities, often through collaborations with other groups in various universities, institutes and industries.

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