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Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints

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...

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Main Authors: Yamani, Seyed Mehrdad, Raja, Sufian, bin Ariffin, Mohammad Ashraf, Mohd Isa, Mohammad Syahid, Muhamad, Mohd Ridha, Jamaludin, Mohd Fadzil, Yusof, Farazila, Hairuddin, Muhammad Khairi Faiz bin Ahmad
Format: Article
Published: ASME 2023
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/38383/
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spelling my.um.eprints.383832024-11-27T03:48:16Z http://eprints.um.edu.my/38383/ Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints Yamani, Seyed Mehrdad Raja, Sufian bin Ariffin, Mohammad Ashraf Mohd Isa, Mohammad Syahid Muhamad, Mohd Ridha Jamaludin, Mohd Fadzil Yusof, Farazila Hairuddin, Muhammad Khairi Faiz bin Ahmad TJ Mechanical engineering and machinery 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. ASME 2023-04 Article PeerReviewed 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 <https://doi.org/10.1115/1.4055909>. 10.1115/1.4055909
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Yamani, Seyed Mehrdad
Raja, Sufian
bin Ariffin, Mohammad Ashraf
Mohd Isa, Mohammad Syahid
Muhamad, Mohd Ridha
Jamaludin, Mohd Fadzil
Yusof, Farazila
Hairuddin, Muhammad Khairi Faiz bin Ahmad
Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints
description 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.
format Article
author Yamani, Seyed Mehrdad
Raja, Sufian
bin Ariffin, Mohammad Ashraf
Mohd Isa, Mohammad Syahid
Muhamad, Mohd Ridha
Jamaludin, Mohd Fadzil
Yusof, Farazila
Hairuddin, Muhammad Khairi Faiz bin Ahmad
author_facet Yamani, Seyed Mehrdad
Raja, Sufian
bin Ariffin, Mohammad Ashraf
Mohd Isa, Mohammad Syahid
Muhamad, Mohd Ridha
Jamaludin, Mohd Fadzil
Yusof, Farazila
Hairuddin, Muhammad Khairi Faiz bin Ahmad
author_sort Yamani, Seyed Mehrdad
title Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints
title_short Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints
title_full Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints
title_fullStr Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints
title_full_unstemmed Effects of Preheating on Microstructural and Mechanical Properties of Friction Stir Welded Thin Low Carbon Steel Joints
title_sort effects of preheating on microstructural and mechanical properties of friction stir welded thin low carbon steel joints
publisher ASME
publishDate 2023
url http://eprints.um.edu.my/38383/
_version_ 1817841935168045056
score 13.223943

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