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Effect of ultrasonic amplitude on microstructure and properties of wire arc additive manufactured ultra-high strength steel deposited metal
Published 2025-01-01“…The ultrasonic cavitation and cooling effects are more pronounced, more high melting point non-metallic oxides are formed, which provide nucleation sites for the solidification of subsequent welds, and the weld grains are refined. The nucleation sites of acicular ferrite are further increased, the multiphase segmentation structure is more obvious, and the impact toughness is further improved. …”
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钢骨箱形柱内横隔板采用改良型电热熔渣焊细部及梁翼板高程差对梁柱接合抗震性能的影响
Published 2018-01-01“…电热熔渣焊(Electro-slag Welding,ESW)为钢骨箱形柱制作柱内横隔板最有效率的焊接方法之一,因此台湾钢骨建筑结构的箱形柱构件广泛采用ESW作为柱内横隔板与柱板连接的焊接方法。…”
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645
Imagined Libya: geopolitics of the margins
Published 2022-12-01“…During the Italian colonisation, Libya was subsumed in Italy’s Mediterranean projections, whether as a necessary “fourth shore” to Italy’s expansion in its “own” Lebensraum, or as a bridge welding Europe and Africa within a unitary geopolitical entity called Eurafrica. …”
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646
Sex-differences in the risk of carpal tunnel syndrome: results from a large Ontario, Canada worker cohort
Published 2024-12-01“…We observed elevated risks of CTS in many occupations requiring repetitive and forceful manual work: slaughtering and meat cutting, canning, curing and packing (HRf = 2.28, 95%CI = 1.42–3.68; HRm = 1.95, 95%CI = 1.33–2.85); welding and flame cutting (HRf = 1.83, 95%CI = 1.01–3.32; HRm = 1.65, 95%CI = 1.35–2.01); motor vehicle fabricating and assembling (HRf = 2.14, 95%CI = 1.74–2.62; HRm = 2.43, 95%CI = 2.04–2.89); and packaging (HRf = 2.06, 95%CI = 1.43–2.97; HRm = 1.82, 95%CI = 1.12–2.98). …”
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647
CRYOGENIC RATCHETING OF PRESTRAINED AUSTENITIC STAINLESS STEEL S30408
Published 2020-01-01“…Because of the softening effect of a small amount of ferrite in weld metal,the initial ratcheting strain of weld specimen and ratcheting strain of weld specimen under small cyclic stress is larger than that of base metal. …”
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648
Densità di energia di deformazione locale e resistenza a fatica di giunti saldati di geometria complessa
Published 2013-04-01“…A recent criterion based on the local strain energy density (SED) averaged over a given control volume is applied to well-documented experimental data taken from the literature, all related to steel welded joints of complex geometry. This small size volume embraces the weld root or the weld toe, both regions being modelled as sharp (zero notch radius) V-notches with different opening angles. …”
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649
Densità di energia di deformazione locale e resistenza a fatica di giunti saldati di geometria complessa
Published 2013-04-01“…A recent criterion based on the local strain energy density (SED) averaged over a given control volume is applied to well-documented experimental data taken from the literature, all related to steel welded joints of complex geometry. This small size volume embraces the weld root or the weld toe, both regions being modelled as sharp (zero notch radius) V-notches with different opening angles. …”
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650
Comportamento a fatica dei giunti saldati in funzione della densità di energia di deformazione locale: influenza dei campi di tensione singolari e non singolari
Published 2009-06-01“…This volume surrounds the weld root or weld toe, both modelled like sharp (zero radius) V-notches with different opening angles. …”
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651
Optimization of S-N curve fitting based on neighborhood rough set reduction with improved firefly algorithm
Published 2023-04-01“…Then, according to the fatigue data of titanium alloy welded joints, the fatigue decision system of welded joints is established, and the key factors affecting the fatigue life of welded joints are determined. …”
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652
One-Time Roll-Forming Technology for High-Strength Steel Profiles with “日” Section
Published 2019-01-01“…In this paper, the “日” shape section of roll forming is studied, and first the b-shaped section is formed by roll forming, and the internal weld line is automatically welded while forming; then the long side of the b-shaped section is bent into the “U” shape, and the external weld line is welded while forming. …”
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653
Mechanical Behavior of Q460 High-Strength Steel under Low-Cycle Fatigue Loading
Published 2022-01-01“…The cumulative effect of fatigue damage on the welded specimens was significant, and the ductility of welded specimens was poor under cyclic loading. …”
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654
Microstructure and Mechanical Properties of the Butt Joint in High Density Polyethylene Pipe
Published 2016-01-01“…The U-notched tensile test of butt welded HDPE pipe and surface etching of the weldments provided clear delineation about the joint quality.…”
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655
ANALYSIS OF THE INFLUENCE OF STIFFENER TYPE AND MANUFACTURING PROCESS ON MECHANICAL BEHAVIOR OF TITANIUM ALLOY STIFFENED PANEL UNDER AXIAL COMPRESSION
Published 2022-01-01“…The influence of manufacturing processes such as welded, spot welded, riveted and integral panels on buckling and post buckling properties are analyzed. …”
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656
Balance Fatigue Design of Cast Steel Nodes in Tubular Steel Structures
Published 2013-01-01“…Cast steel node joint consists of two parts: casting itself and the welds between the node and the steel member. The fatigue resistances of these two parts are very different; the experiment results showed very clearly that the fatigue behavior was governed by the welds in all tested configurations. …”
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657
Hydrogen assisted cracking resistance test to evaluate the hydrogen service for 2.25Cr-1Mo-V steel heavy wall hydroprocessing reactors
Published 2024-12-01“…Furthermore, the HAC resistance tests using the welded test plate simulating the girth weld joint of actual reactor were conducted, and its characteristics were evaluated with the focus on the resistance to HAC initiation. …”
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658
A state-of-art review of fatigue short crack propagation behavior of metals: Model, experimental and prospective
Published 2025-03-01“…SC posed unique challenges, particularly in marine and welded structures, where traditional linear elastic fracture mechanics (LEFM) fell short due to their inability to capture the microstructural sensitivity and fluctuating growth characteristics of SC. …”
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659
CHOICE OF STEEL AND PRODUCTION TECHNOLOGY AT PRODUCTION OF THIN-WALLED ELECTRICWELDED PIPES AND PRODUCTS OF THEM
Published 2011-08-01“…It is shown that using of the modern materials and production technologies enables to receive light-wall electric-welded pipes of different categories of drawing out (by analogy with categories of sheet iron drawing out).…”
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660
Quality Diagnosis for Rocket Body Structure Manufacturing Process Based on Product Quality DNA
Published 2025-01-01“…The feasibility of the method is verified by two case studies of two welds. The results show that the method can effectively and accurately diagnose weld quality.…”
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