Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints

Friction stir welding (FSW) as a solid-state process is an excellent candidate for high softening temperature materials welding; however, extending the tool life is required to make the process cost-effective. This work investigates the use of a high pin to shoulder ratio (65%) tungsten carbide (WC)...

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Autores principales:	Mohamed M. Z. Ahmed, Khalil Hajlaoui, Mohamed M. El-Sayed Seleman, Mahmoud F. Elkady, Sabbah Ataya, Fahamsyah H. Latief, Mohamed I. A. Habba
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	2205 DSS friction stir welding FSW microstructures hardness tensile properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/8f58a0ca499745319a2cbb26f2fc80a3
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spelling	oai:doaj.org-article:8f58a0ca499745319a2cbb26f2fc80a32021-11-11T18:09:57ZMicrostructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints10.3390/ma142166401996-1944https://doaj.org/article/8f58a0ca499745319a2cbb26f2fc80a32021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6640https://doaj.org/toc/1996-1944Friction stir welding (FSW) as a solid-state process is an excellent candidate for high softening temperature materials welding; however, extending the tool life is required to make the process cost-effective. This work investigates the use of a high pin to shoulder ratio (65%) tungsten carbide (WC) tool for friction stir welding of 5 mm thick 2205 DSS to extend the tool life of this low-cost tool material. In addition, the effect of FSW parameters in terms of rotational rates, travel speeds, and downward forces on the microstructural features and mechanical properties of the welded joints were investigated. Characterization in terms of visual inspection, macro and microstructures, hardness, and tensile testing was conducted. The obtained results indicated that the combined rotational rate, travel speed, and downward force parameters govern the production of defect-free joints. The 2205 DSS friction stir welds show an enhancement in hardness compared to the base material. The stir zone showed a significantly refined grain structure of ferrite and austenite with the reduction in the average grain size from 8.8 µm and 13.3 µm for the base material to 2.71 µm and 2.24 µm, respectively. Moreover, this joint showed higher yield strength and ultimate tensile strength compared to the DSS as-received material.Mohamed M. Z. AhmedKhalil HajlaouiMohamed M. El-Sayed SelemanMahmoud F. ElkadySabbah AtayaFahamsyah H. LatiefMohamed I. A. HabbaMDPI AGarticle2205 DSSfriction stir weldingFSWmicrostructureshardnesstensile propertiesTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6640, p 6640 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	2205 DSS friction stir welding FSW microstructures hardness tensile properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	2205 DSS friction stir welding FSW microstructures hardness tensile properties Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Mohamed M. Z. Ahmed Khalil Hajlaoui Mohamed M. El-Sayed Seleman Mahmoud F. Elkady Sabbah Ataya Fahamsyah H. Latief Mohamed I. A. Habba Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints
description	Friction stir welding (FSW) as a solid-state process is an excellent candidate for high softening temperature materials welding; however, extending the tool life is required to make the process cost-effective. This work investigates the use of a high pin to shoulder ratio (65%) tungsten carbide (WC) tool for friction stir welding of 5 mm thick 2205 DSS to extend the tool life of this low-cost tool material. In addition, the effect of FSW parameters in terms of rotational rates, travel speeds, and downward forces on the microstructural features and mechanical properties of the welded joints were investigated. Characterization in terms of visual inspection, macro and microstructures, hardness, and tensile testing was conducted. The obtained results indicated that the combined rotational rate, travel speed, and downward force parameters govern the production of defect-free joints. The 2205 DSS friction stir welds show an enhancement in hardness compared to the base material. The stir zone showed a significantly refined grain structure of ferrite and austenite with the reduction in the average grain size from 8.8 µm and 13.3 µm for the base material to 2.71 µm and 2.24 µm, respectively. Moreover, this joint showed higher yield strength and ultimate tensile strength compared to the DSS as-received material.
format	article
author	Mohamed M. Z. Ahmed Khalil Hajlaoui Mohamed M. El-Sayed Seleman Mahmoud F. Elkady Sabbah Ataya Fahamsyah H. Latief Mohamed I. A. Habba
author_facet	Mohamed M. Z. Ahmed Khalil Hajlaoui Mohamed M. El-Sayed Seleman Mahmoud F. Elkady Sabbah Ataya Fahamsyah H. Latief Mohamed I. A. Habba
author_sort	Mohamed M. Z. Ahmed
title	Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints
title_short	Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints
title_full	Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints
title_fullStr	Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints
title_full_unstemmed	Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints
title_sort	microstructure and mechanical properties of friction stir welded 2205 duplex stainless steel butt joints
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8f58a0ca499745319a2cbb26f2fc80a3
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Microstructure and Mechanical Properties of Friction Stir Welded 2205 Duplex Stainless Steel Butt Joints

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