Results 1 to 10 of about 1,083,354 (120)
Metals, 2023 The physical phenomena of submerged arc welding (SAW) conducted with a 1.6 mm flux-cored wire were investigated using X-ray imaging technique. Three kinds of metal transfer modes were confirmed in this paper, namely the front flux wall-guided droplet ...
Yanfei Han +5 more
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Blue LED-pumped intense short-wave infrared luminescence based on Cr3+-Yb3+-co-doped phosphors
Light: Science & Applications, 2022 Cr3+-Yb3+-co-doped phosphors that emit intense short-wave infrared light in the 900–1200 nm upon blue light excitation have been developed.
Yan Zhang +7 more
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Crystals, 2022 Trivalent lanthanides (Ln3+) doped bismuth-based inorganic compounds have attracted considerable interest as promising candidates for next-generation inorganic luminescent materials.
Weili Wang +3 more
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Morphology and Growth Mechanism of β-Rhombohedral Boron and Pentagonal Twins in Cu Alloy
Crystals, 2022 In this work, boron particles with β-rhombohedral structure were prepared in Cu-4B alloy. The morphology and growth mechanism of β-B and pentagonal twins were analyzed.
Junqing Han +6 more
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Process Stability, Microstructure and Mechanical Properties of Underwater Submerged-Arc Welded Steel
Metals, 2021 In underwater wet welding, the unstable welding process caused by the generation and rupture of bubbles and the chilling effect of water on the welding area result in low quality of welded joints, which makes it difficult to meet the practical ...
Maofu Zhang +5 more
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Specific Features of Structure Transformation and Properties of Amorphous-Nanocrystalline Alloys
Metals, 2020 This work is devoted to a brief overview of the structure and properties of amorphous-nanocrystalline metallic alloys. It presents the current state of studies of the structure evolution of amorphous alloys and the formation of nanoglasses and ...
Alexandr Aronin, Galina Abrosimova
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Suppression mechanism of weld appearance defects in tandem TIG welding by numerical modeling
Journal of Materials Research and Technology, 2021 In high-speed tungsten inert gas (TIG) welding, the premature solidification of liquid metal in low-temperature zone of molten pool results in the formation of weld appearance defects (WADs) such as undercut and humping weld.
Guoliang Qin, Chao Feng, Hong Ma
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Numerical Investigation of Arc-Pool-Metal Vapor Behavior in GTAW with an External Magnetic Field
Metals, 2020 Gas tungsten arc welding with an external magnetic field is proven to suppress weld defects while improving welding speed. A three-dimensional numerical model that considers interactions among the arc plasma, weld pool, metal vapor, and external magnetic
Yu Han +4 more
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Journal of Materials Research and Technology, 2022 Understanding of the microstructure evolution and the influence of ultrasonic vibration on friction stir welding (FSW) of dissimilar Al/Mg alloys is of great significance in optimizing the process parameters and improving the joint quality. In this study,
Junjie Zhao, ChuanSong Wu, Lei Shi
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Journal of Materials Research and Technology, 2023 Development of a reasonable constitutive equation is critical to realize accurate numerical prediction of ultrasonic vibration-assisted friction stir welding (UVaFSW) of dissimilar Al/Mg alloys and deepen the understanding of the synchronous interaction ...
Guanlan Zhang +2 more
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