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Peening Techniques for Mitigating Chlorine-Induced Stress Corrosion Cracking of Dry Storage Canisters for Nuclear Applications.
Materials (Basel)
January 2025
Department of Mechanical Engineering, University of Nevada, Reno, NV 89557, USA.
Fusion-welded austenitic stainless steel (ASS) was predominantly employed to manufacture dry storage canisters (DSCs) for the storage applications of spent nuclear fuel (SNF). However, the ASS weld joints are prone to chloride-induced stress corrosion cracking (CISCC), a critical safety issue in the nuclear industry. DSCs were exposed to a chloride-rich environment during storage, creating CISCC precursors.
View Article and Find Full Text PDFQuantitative efficiency of optoacoustic ultrasonic treatment in SLM, DED, and LBW applications.
Sci Rep
January 2025
Udmurt Federal Research Center of the Ural Branch of RAS, Baramzina str. 34, Izhevsk, 426067, Russia.
Ultrasound can improve the quality of finished products by reducing porosity and enhancing microstructure in selective laser melting, directed energy deposition, and laser beam welding. This study evaluates the efficiency of ultrasound produced by a pulsed laser via the optoacoustic effect. A quantitative model of collapse of vapor-gas bubbles has been developed under the conditions of ultrasonic treatment at near resonance frequencies.
View Article and Find Full Text PDFEffect of Heat Supplied to the Joint in the MAG Welding Process of Ferritic-Austenitic Stainless Steel 1.4462 on the Size of the Cross-Sectional Area of the Joints.
Materials (Basel)
December 2024
Department of Production Engineering, Faculty of Mechanical and Energy Engineering, Koszalin University of Technology, Raclawicka 15-17, 75-620 Koszalin, Poland.
In this study, the relationships between the values of the parameters included in heat input (welding current, arc voltage and welding speed) and their effects on the size of the cross-sectional areas of welds in joints made of ferritic-austenitic stainless steel using the GMAW method were determined. An attempt was also made to determine to what extent it will be possible to predict the properties of fabricated welded joints using the functional relationship describing the effect of the value of heat input on the size of the cross-sectional area of welds. The analysis of the developed mathematical models shows their suitability for explaining (and predicting) the sizes of the cross-sectional areas of welded joints depending on the values of the input parameters of the welding process.
View Article and Find Full Text PDFExperimental and numerical investigation of dissimilar weld characterization in laser welding of duplex 2205 and AISI 1060 steel: Microstructure, mechanical properties and weld geometry.
Heliyon
December 2024
Department of Mechanics, Electrical Power and Computer, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Article Synopsis
- The study focused on dissimilar laser welding of AISI 1060 carbon steel and Duplex Stainless Steel 2205, using both experimental and numerical methods to analyze the impact of welding parameters.
- The increase in laser power significantly influenced the melt pool depth, which rose from 0.4 mm to 1.4 mm when power was ramped up from 250 to 450 W, and the resultant microstructure varied between the two materials with distinct solidification patterns.
- Tensile test results indicated that the carbon steel side exhibited brittle fracture, while the Duplex Stainless Steel showed a ductile fracture, highlighting the differing mechanical properties due to their respective microstructures and the transition towards ductility with increased laser energy density.
Application of machine learning and neural network models based on experimental evaluation of dissimilar resistance spot-welded joints between grade 2 titanium alloy and AISI 304 stainless steel.
Heliyon
December 2024
Department of Manufacturing Processes and Production Engineering, Rzeszow University of Technology, al. Powst. Warszawy 8, 35-959, Rzeszów, Poland.
The use of a composite welded joint consisting of titanium and austenitic stainless steel metals is evidently a favourable selection for industrial applications employing the resistance spot welding (RSW) operation. Nevertheless, achieving a high-quality welded joint proved challenging owing to the properties of the diverse range of materials' used. To improve the quality of dissimilar welded joints, the welding parameters should be selected precisely.
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