Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding

Friction stir welding as one of the modern methods of solid-state welding of steel sheets and aluminum is a highly regarded industry. In these studies, the experimental design and response surface methodology were used. Optimization of experimental conditions and results which are compared with good...

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Main Authors: Mahmoud Afshari, Nima Fakhralmobasheri, Mohammad Reza Samadi, Amirhossein Alavi, Hossein Norozi Foroushani
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2021/6269135
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author Mahmoud Afshari
Nima Fakhralmobasheri
Mohammad Reza Samadi
Amirhossein Alavi
Hossein Norozi Foroushani
author_facet Mahmoud Afshari
Nima Fakhralmobasheri
Mohammad Reza Samadi
Amirhossein Alavi
Hossein Norozi Foroushani
author_sort Mahmoud Afshari
collection DOAJ
description Friction stir welding as one of the modern methods of solid-state welding of steel sheets and aluminum is a highly regarded industry. In these studies, the experimental design and response surface methodology were used. Optimization of experimental conditions and results which are compared with good agreement between the results was observed. The mechanical properties and ductility of welded plates under optimal conditions were studied. Microhardness testing, metallography, tensile testing, and limiting dome height were used to investigate the mechanical properties and formability limit diagram attached, respectively. The results showed that the heat-affected zone is very small and narrow and not easily distinguished from the base metal. In all tests, the failure of the dome height limit in the area was chaos. In all samples welded with the optimal parameters, tensile failure occurred in the base metal region. Turbulence in the region confirms the presence of WC particles. Experimental design and response surface methodology could introduce an optimal state, and the creation of common defects in the FSW process can prevent the binding strength of the guarantee. But due to the lack of proper stirring in the perturbation area in the samples welded with non-optimized parameters, the strength of the connection is not suitable, and samples were broken from the SZ region.
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institution Kabale University
issn 1875-9203
language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Shock and Vibration
spelling doaj-art-c354de54688b4b638e349b9ba6ce59d72025-02-03T07:24:15ZengWileyShock and Vibration1875-92032021-01-01202110.1155/2021/6269135Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir WeldingMahmoud Afshari0Nima Fakhralmobasheri1Mohammad Reza Samadi2Amirhossein Alavi3Hossein Norozi Foroushani4Department of Mechanical EngineeringDepartment of Materials EngineeringFaculty of Mechanical EngineeringDepartment of Mechanical EngineeringDepartment of Mechanical EngineeringFriction stir welding as one of the modern methods of solid-state welding of steel sheets and aluminum is a highly regarded industry. In these studies, the experimental design and response surface methodology were used. Optimization of experimental conditions and results which are compared with good agreement between the results was observed. The mechanical properties and ductility of welded plates under optimal conditions were studied. Microhardness testing, metallography, tensile testing, and limiting dome height were used to investigate the mechanical properties and formability limit diagram attached, respectively. The results showed that the heat-affected zone is very small and narrow and not easily distinguished from the base metal. In all tests, the failure of the dome height limit in the area was chaos. In all samples welded with the optimal parameters, tensile failure occurred in the base metal region. Turbulence in the region confirms the presence of WC particles. Experimental design and response surface methodology could introduce an optimal state, and the creation of common defects in the FSW process can prevent the binding strength of the guarantee. But due to the lack of proper stirring in the perturbation area in the samples welded with non-optimized parameters, the strength of the connection is not suitable, and samples were broken from the SZ region.http://dx.doi.org/10.1155/2021/6269135
spellingShingle Mahmoud Afshari
Nima Fakhralmobasheri
Mohammad Reza Samadi
Amirhossein Alavi
Hossein Norozi Foroushani
Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
Shock and Vibration
title Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
title_full Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
title_fullStr Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
title_full_unstemmed Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
title_short Mechanical and Formability Evaluation of ST14 Alloys Welded by Friction Stir Welding
title_sort mechanical and formability evaluation of st14 alloys welded by friction stir welding
url http://dx.doi.org/10.1155/2021/6269135
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