Three dimensional material flow visualization in dissimilar friction stir welding by X-ray transmission imaging

Research Project

Project/Area Number	24K17532
Research Category	Grant-in-Aid for Early-Career Scientists
Allocation Type	Multi-year Fund
Review Section	Basic Section 26050:Material processing and microstructure control-related
Research Institution	Osaka University
Principal Investigator	SHARMA ABHISHEK 大阪大学, 接合科学研究所, 特任助教 (50993705)
Project Period (FY)	2024-04-01 – 2026-03-31
Project Status	Granted (Fiscal Year 2024)
Budget Amount *help	¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000) Fiscal Year 2025: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2024: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords	Friction stir welding / Dissimilar / Xrays / Material flow
Outline of Research at the Start	The effective formation of a strong joint through friction stir welding (FSW) heavily relies on the characteristics of material flow. The material flow behavior gets more complex during the joining of dissimilar materials, each with distinct physical and mechanical properties. Therefore, the principles of material flow established for the joining of similar materials cannot be directly applied to the joining of dissimilar materials. Thus, this project aims to employ X-ray imaging to comprehensively investigate the material flow behaviors during the joining of Al and Mg using FSW.