Results 111 to 120 of about 207 (134)
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Acta Metallurgica Sinica (English Letters), 2021
A large-scale Mg–6Al–Zn plate was prepared by multi-pass submerged friction stir processing (M-SFSP) and its superplastic deformation behavior was investigated. The maximum elongation of 467%, 332% and 421% was attained for the samples oriented in the processing direction (PD), 45° tilted toward the PD, and transverse direction (TD), respectively, when
Xicai Luo +6 more
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A large-scale Mg–6Al–Zn plate was prepared by multi-pass submerged friction stir processing (M-SFSP) and its superplastic deformation behavior was investigated. The maximum elongation of 467%, 332% and 421% was attained for the samples oriented in the processing direction (PD), 45° tilted toward the PD, and transverse direction (TD), respectively, when
Xicai Luo +6 more
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Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2015
Abstract In this study, a fine-grained Mg–Y–Nd alloy with an average grain size of ~1.3 μm and small second phases of ~280 nm was prepared by submerged friction stir processing (SFSP). Microstructure evolution and superplastic behavior of Mg–Y–Nd alloy processed by SFSP was investigated in the temperature ranges of 683–758 K and the strain rate ...
Genghua Cao, Datong Zhang, Fang Chai
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Abstract In this study, a fine-grained Mg–Y–Nd alloy with an average grain size of ~1.3 μm and small second phases of ~280 nm was prepared by submerged friction stir processing (SFSP). Microstructure evolution and superplastic behavior of Mg–Y–Nd alloy processed by SFSP was investigated in the temperature ranges of 683–758 K and the strain rate ...
Genghua Cao, Datong Zhang, Fang Chai
exaly +2 more sources
Volume 2: Advanced Manufacturing, 2016
Friction stir welding (FSW) invented by TWI is a solid-state joining process, which is used to weld high-strength aluminum alloys and other metallic alloys which are non weldable by conventional fusion welding process. In this work, AA6063-O alloy of 150 mm in length, 75 mm in width and 6mm thickness is taken and friction stir welded in submerged ...
Senthil Kumar Velukkudi Santhanam +3 more
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Friction stir welding (FSW) invented by TWI is a solid-state joining process, which is used to weld high-strength aluminum alloys and other metallic alloys which are non weldable by conventional fusion welding process. In this work, AA6063-O alloy of 150 mm in length, 75 mm in width and 6mm thickness is taken and friction stir welded in submerged ...
Senthil Kumar Velukkudi Santhanam +3 more
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2022
High rotating speed submerged friction stir processing (HRS-SFSP) was designed to modify 6061 aluminum alloy to improve its corrosion resistance in seawater environment. The results show that the grain size of 6061 aluminum alloy was significantly refined by HRS-SFSP, and the defect density was effectively reduced.
Yuchen Peng +7 more
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High rotating speed submerged friction stir processing (HRS-SFSP) was designed to modify 6061 aluminum alloy to improve its corrosion resistance in seawater environment. The results show that the grain size of 6061 aluminum alloy was significantly refined by HRS-SFSP, and the defect density was effectively reduced.
Yuchen Peng +7 more
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Journal of Materials Science, 2019
Multi-pass submerged friction stir processing (M-SFSP) with an overlapping ratio of 50% was applied on as-cast AZ61 magnesium plate. The relationship between the microstructure and tensile behavior of the M-SFSP plate was investigated. With the cooling enhancement during processing, the grain size is significantly refined to be ~ 3.7 ± 1.7 μm in the ...
X. C. Luo +4 more
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Multi-pass submerged friction stir processing (M-SFSP) with an overlapping ratio of 50% was applied on as-cast AZ61 magnesium plate. The relationship between the microstructure and tensile behavior of the M-SFSP plate was investigated. With the cooling enhancement during processing, the grain size is significantly refined to be ~ 3.7 ± 1.7 μm in the ...
X. C. Luo +4 more
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Materials Research Innovations, 2014
Submerged friction stir processing (SFSP) is a novel severe plastic deformation technique conducted underwater, which has great potential in preparation of fine-grained materials. In this study, AZ31 magnesium alloy is subjected to FSP in air (NFSP) and underwater at a fixed processing speed (60 mm min−1) and various rotation speeds (1100, 1300 and ...
F. Chai, D. T. Zhang, Y. Y. Li
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Submerged friction stir processing (SFSP) is a novel severe plastic deformation technique conducted underwater, which has great potential in preparation of fine-grained materials. In this study, AZ31 magnesium alloy is subjected to FSP in air (NFSP) and underwater at a fixed processing speed (60 mm min−1) and various rotation speeds (1100, 1300 and ...
F. Chai, D. T. Zhang, Y. Y. Li
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Journal of Thermoplastic Composite Materials, 2016
The focus of this work was to study the effect of multiwalled carbon nanotubes (MWCNTs) on morphology, mechanical, and thermal properties of high-density polyethylene (HDPE) nanocomposites. MWCNTs/HDPE nanocomposites were prepared using submerged friction stir processing (SFSP) technique.
Jicheng Gao, Yifu Shen, Chao Li
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The focus of this work was to study the effect of multiwalled carbon nanotubes (MWCNTs) on morphology, mechanical, and thermal properties of high-density polyethylene (HDPE) nanocomposites. MWCNTs/HDPE nanocomposites were prepared using submerged friction stir processing (SFSP) technique.
Jicheng Gao, Yifu Shen, Chao Li
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2021
A laminar composite structure was developed in a CuZn alloy plate by non-equilibrium heat treatment and subsequent submerged friction stir processing. For this aim, Cu-37 wt.% Zn alloy was initially heat treated to produce a double phase structure. Then, the double phase plate was friction stir processed in underwater media at room temperature.
Heidarzadeh, Akbar +1 more
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A laminar composite structure was developed in a CuZn alloy plate by non-equilibrium heat treatment and subsequent submerged friction stir processing. For this aim, Cu-37 wt.% Zn alloy was initially heat treated to produce a double phase structure. Then, the double phase plate was friction stir processed in underwater media at room temperature.
Heidarzadeh, Akbar +1 more
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Experimental Research on Submerged Underwater Friction Stir Processing of EN AW 1200 Aluminum Alloy
Materials Science ForumSubmerged friction stir processing is a variant of processing metallic materials that is based on the principle of FSW welding and which considers the local modification of the mechanical properties and the microstructure of the material to be processed.
Lia Nicoleta Botila +5 more
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