Clarifying the polymer-like double necking phenomenon in metastable FCC alloys

Research Project

Project/Area Number	25K08343
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Review Section	Basic Section 26050:Material processing and microstructure control-related
Research Institution	Kyoto University
Principal Investigator	高斯京都大学, 工学研究科, 准教授 (00782038)
Project Period (FY)	2025-04-01 – 2028-03-31
Project Status	Granted (Fiscal Year 2025)
Budget Amount *help	¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000) Fiscal Year 2027: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000) Fiscal Year 2026: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2025: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords	deformation behavior / ultrafine grain / strain localization
Outline of Research at the Start	Following issues will be investigated: 1.Strain localization and its impact on dislocation structures during propagating necking of the FCC FeCoCrV alloy. 2. Effect of triaxial stress on dislocation structures and strain hardening. 3. How martensite contributes to strain hardening during the necking.