Journal of Materials Science and Technology 178 80-89 Apr 2024 [Refereed]
The microstructural factors contributing to the high strength of additive-manufactured Al–Si alloys using laser-beam powder bed fusion (PBF-LB) were identified by in-situ synchrotron X-ray diffraction in tensile deformation and transmission electr...
Keikinzoku/Journal of Japan Institute of Light Metals 73(12) 628-632 Dec 2023 [Refereed]
Type-B serrations were observed during room-temperature tensile deformation of Al-2.17mass%Mg alloy with an average grain size of 12 μm. Digital image correlation was used to visualize Portevin-Le Chatelier (PLC) bands, and microstructural changes...
Sukyoung Hwang Park Myeong-Heom Yu Bai Akinobu Shibata Hiroki Adachi Masugu Sato Nobuhiro Tsuji
International Symposium on New Developments in Advanced High-Strength Sheet Steels, AHSS 2023 119-124 Jun 2023 [Refereed]
22Mn-0.6C (wt. %) high-Mn austenitic steel having fully recrystallized microstructure was obtained through 4 cycles of repeated cold-rolling and annealing process. Mechanical properties were evaluated by tensile test at an initial strain rate of 8...
Materials Transactions 64(2) 458-466 Jan 2023 [Refereed]
This study investigated the cluster formation process in the early stages of 353 K aging in Al1.04 mass%Si0.55 mass%Mg alloys by means of soft X-ray absorption fine structure (XAFS) measurements and first-principles calculations. XAFS at the Si-K ...
The Plaston Concept: Plastic Deformation in Structural Materials 197-212 Jan 2022 [Refereed]
Grain refinement is one of the methods applied to strengthen metallic materials, and various peculiar mechanical properties have been reported to be expressed when the grain size is reduced to less than submicron dimensions. This is considered to ...
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