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Formation mechanism of SH guided wave in weld seam
Results in Physics, 2020 Shear horizontal (SH)-guided wave detection of weld seams is a new type of weld detection technology. To better apply SH-guided waves to weld detection, it is necessary to study the formation mechanism of SH-guided waves and to identify weld structures ...
Xiaolong Zhang, Zhenying Xu
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Weld Formation in Laser Hot-Wire Welding of 7075 Aluminum Alloy
Metals, 2018 The laser hot-wire welding process was adopted to weld 7075 high-strength aluminum alloy. The influence laws of parameters on the weld formation were analyzed during laser hot-wire welding, and the microstructure characteristics and mechanical properties
Shichun Li, Wei Xu, Gang Xiao, Bing Chen
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Metals, 2022 Laser-arc hybrid welding of AZ31B magnesium alloy was carried out in this paper, and the effects of welding parameters (laser power, welding speed, welding current) on weld formation, microstructure evolution and mechanical property were studied.
Sibo Wang, Chunyan Yan, Zhengjia Gu
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Nanomodification is an effective methodfor forming the structure of the weld metal. Part II. [PDF]
Нанотехнологии в строительстве, 2020 The short-term existence of the melt in the weld pool and its overheating, a large temperature gradient near the interface and two-dimensional crystallization centers, in the form of fused grains at the weld pool boundary, reduce the probability and rate
Sizintsev Sergey Valerievich +3 more
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Applied Sciences, 2023 The basic principle of ultrasound is to relate the time of flight of a received echo to the location of a reflector, assuming a known and constant velocity of sound.
Michał K. Kalkowski +5 more
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Modeling of chemical composition in the melt pool during laser welding of Aluminum / Magnesium alloys [PDF]
E3S Web of Conferences, 2021 Joining dissimilar metals is very difficult due to the formation of brittle intermetallic phases which may be detrimental to mechanical properties. The present work aims to investigate the transport phenomenon in the weld bead and to understand the ...
Ben Halim Sabrine +2 more
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Sensors, 2023 Abnormal formation of girth weld is a major threat to the safe operation of pipelines, which may lead to serious accidents. Therefore, regular inspection and maintenance of girth weld are essential for accident prevention and energy security.
Rui Li +3 more
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Metals, 2021 In the investigation at hand, sheets of ferritic and pearlitic grey cast iron with spheroidal graphite are welded using a fiber-laser. The influence of varying laser power and welding speed on the macroscopic characteristics of the weld seam and crack ...
Niklas Sommer +3 more
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International Journal of Electrochemical Science, 2021 Micro-alloying elements significantly affect the microstructure, mechanical properties and corrosion behavior of the high-strength steel weld metals.
Jianguo Chen +7 more
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Formation of α’ titanium welds by friction stir welding
Journal of Physics: Conference Series, 2020 Abstract In the present study, investigation of the macrostructure of α’ titanium alloy weld produced by the friction stir welding has been carried out. The welding process modes were also selected. It is shown that in case of insufficient load on the tool, an open weld defect is formed.
A I Amirov +4 more
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