Journal ArticleDOI
Biochar-assisted copper-steel dissimilar friction stir welding: mechanical, fatigue, and microstructure properties
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In this article, the effect of adding novel biochar microparticle into the welding zone of dissimilar friction stir welding of AISI-SAE 1010 (steel) and CDA 101 (copper) alloys was investigated.Abstract:
This present work investigates the effect of adding novel biochar microparticle into the welding zone of dissimilar friction stir welding of AISI-SAE 1010 (steel)–CDA 101 (copper) alloys. The primary aim of this work was to produce efficient weld joints in AISI-SAE 1010–CDA 101 alloys using biochar as solid lubricant via friction stir welding process. The biochar particles were prepared from rice husk biomass via carbonization process. The welding was performed using tapered pin profiled tool with rotational speed of 900 rpm, traverse speed of 30 mm/min, axial load of 5 KN, dwell time of 5s, plunging depth of 0.2mm, and biochar additions of 0.5, 1, 2, and 4wt%. The highest tensile strength of 205 MPa, elongation of 44%, yield strength of 177MPa, strain value of 36, and Vickers hardness of 121 were observed for FSW joints made using 2wt% of biochar content. Large addition of biochar up to 4wt% marginally affects the properties. Similarly, the fatigue strength of 157MPa was observed for weld made using 2wt% of biochar. The microstructure of biochar-assisted weld nugget shows highly refined less thermally affected grains. The grains were in equiaxial with distortion-free. The EDAX report confirms the presence of copper, iron, and carbon on the weld nugget, which indicates fine mixing of parent metals with solid lubricant. These mechanical properties improved environmental friendly dissimilar welding method could be used in industrial applications such as automobile, aerospace, construction, defense, medical, energy where high strength with high durable weld joints are required to meet the current technology demand, and process economy.read more
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Effect of Swing-Spiral-Trajectory on pulsed fiber laser welding stainless steel/Copper dissimilar metals
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Microstructural Analysis and Mechanical Behaviour of Copper CDA 101/AISI-SAE 1010 Dissimilar Metal Welds Processed by Friction Stir Welding
TL;DR: In this paper , low carbon steel AISI-SAE grade 1010 with copper grade CDA 101 was joined by friction stir welding (FSW) using a tapered pin profiled tool.
References
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Journal ArticleDOI
Microstructures and mechanical properties of friction stir welded dissimilar steel-copper joints
TL;DR: In this article, a 304L stainless steel was joined to copper by FSW and the optimal values of the welding parameters traverse speed, rotational speed, and tilt angle were obtained through Response surface methodology (RSM).
Journal ArticleDOI
In-situ nanocomposite in friction stir welding of 6061-T6 aluminum alloy to AZ31 magnesium alloy
Amin Abdollahzadeh,Amin Abdollahzadeh,Ali Shokuhfar,José-María Cabrera,Alexander P. Zhilyaev,Alexander P. Zhilyaev,Hamid Omidvar +6 more
TL;DR: In this article, a combination of two travel speeds (25 and 35mm/min) and three rotation speeds (550, 600 and 650mm/rpm) were employed to obtain the optimal conditions for FSW of AZ31 magnesium alloy to 6061 aluminum alloy.
Journal ArticleDOI
On the microstructure characterization of the AA2098-T351 alloy welded by FSW
Mariana X. Milagre,Naga V. Mogili,Uyime Donatus,Rafael Arthur Reghine Giorjão,Maysa Terada,João Victor de Sousa Araujo,Caruline de Souza Carvalho Machado,Isolda Costa +7 more
TL;DR: In this article, the complex structure of the AA2098-T351 alloy welded by friction stir welding (FSW) was investigated by transmission electron microscopy (TEM), differential scanning calorimetry (DSC) and microhardness measurements.
Journal ArticleDOI
Fatigue performances of FSW and GMAW aluminum alloys welded joints: Competition between microstructural and structural-contact-fretting crack initiation
Damien Texier,Damien Texier,F. Atmani,Philippe Bocher,F. Nadeau,Jie Chen,Yasser Zedan,Nicolas Vanderesse,V. Demers +8 more
TL;DR: In this article, microstructural and fractographic analyses were conducted to document the influence of the process on microstructure evolution, fatigue crack initiation sites, and propagation mechanisms leading to the final rupture of the assemblies.
Journal ArticleDOI
Application of biochar in agriculture and environment, and its safety issues
TL;DR: In this paper, a review summarizes the influences of biomass-derived low-cost biochar on agriculture and environmental health, crop responses, nutrient dynamics, and soil biological parameter-related issues as well as how biochar can helpful for agriculture and environment management.