Yamani, Seyed Mehrdad and Raja, Sufian and bin Ariffin, Mohammad Ashraf and Mohd Isa, Mohammad Syahid and Muhamad, Mohd Ridha and Jamaludin, Mohd Fadzil and Yusof, Farazila and Hairuddin, Muhammad Khairi Faiz bin Ahmad (2023) Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints. Journal of Engineering Materials And Technology-Transactions Of The ASME, 145 (2). ISSN 0094-4289, DOI https://doi.org/10.1115/1.4055909.
Full text not available from this repository.Abstract
Friction stir welding of a low carbon thin steel plate was performed with preheating the base material to increase the joining performance. The rotational speed of the tool was set from 1500 to 2000 rpm with a constant travel speed of 15 mm/min and preheating temperature of 50 to 150 ?. The tensile strength of 340 MPa was achieved for the preheated specimen compared with 310 MPa for the non-preheating specimen at the welding speed of 15 mm/min. Electron microscopic images of the preheated joint revealed a remarkable plasticized material flow and dynamic recrystallization, which resulted in the grain refinement that had increased the joining strength. The weld thinning issue was almost eliminated in the preheated welded specimen. However, by increasing the preheat temperature further, the tensile strength decreases due to the formation of defects from excessive heat. The preheated sample fractured at the base metal, revealing a ductile fracture mode.
| Item Type: | Article |
|---|---|
| Funders: | Research University [Grant No: GPF062A-2020, GPF062B-2020] |
| Uncontrolled Keywords: | Friction stir welding; Mild steel; Preheating FSW; Microfriction stir welding; Thin sheet metal joining; Fracture; Joining; Mechanical behavior; Microstructure property relationships |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 27 Nov 2024 03:48 |
| Last Modified: | 27 Nov 2024 03:48 |
| URI: | http://eprints.um.edu.my/id/eprint/38383 |
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