Journal ArticleDOI
Effect of SAW fluxes on electrochemical corrosion & microstructural behavior of API X70 weldments:
Lochan Sharma,Rahul Chhibber,Deepak Bhandari +2 more
- Vol. 235, Iss: 4, pp 1140-1149
TLDR
Submerged arc welding finds its application to weld thick pipes as mentioned in this paper, and high performance pipeline steels are frequently used for storage, transportation and energy development applications, such as nuclear power plants.Abstract:
High-performance pipeline steels are frequently used for storage, transportation and energy development applications. Submerged arc welding finds its application to weld thick pipes. Design and dev...read more
References
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Journal ArticleDOI
Design & development of SAW fluxes using CaO–SiO2–CaF2 and CaO–SiO2–Al2O3 flux systems
Lochan Sharma,Rahul Chhibber +1 more
TL;DR: In this article, the physicochemical and thermo-physical properties of submerged arc fluxes were analyzed using Fourier transform infrared spectrometer and hot disc technique, and multi objective optimization was performed to derive the optimized flux formulations.
Journal ArticleDOI
Effect of Weld Cooling Rates on Mechanical and Metallurgical Properties of Submerged Arc Welded Pressure Vessel Steel
TL;DR: In this article, the impact strength of SA 516 grade 60 pressure vessel grade steel was investigated with different heat plate thicknesses and the influence of cooling rate on microstructure, Vickers hardness, and impact toughness of heat affected zone (HAZ) of weldment was systematically investigated.
The formation of chevron cracks in submerged arc weld metal
D J Allen,B Chew,P Harris +2 more
TL;DR: In this paper, the cause of chevron cracking in multipass submerged arc weld metal has been investigated by welding trials and fractographic studies, and the quenching procedure of Tuliani was used in a series of test welds in which the same flux and wire were used throughout, but the weld metal hydrogen content was varied by baking the flux.
Journal ArticleDOI
Improvement of notch toughness and soundness in longitudinal seam weld of line pipe.
Kazutaka Akao,Toshio Ishihara,Toyofumi Kitada,Yukio Nishino,Naoki Okuda,Wada Takashi,Kaoru Nagatani +6 more
TL;DR: In this article, a flux with a solidification temperature of 950 to 1050°C and with a viscosity of 2.5 to 4.5 poise at 1400°C can minimize slag inclusion and undercutting.
Journal ArticleDOI
Estudo das propriedades mecânicas do aço api x70 produzido por laminação controlada
Ronald Lesley Plaut,Antonio Augusto Gorni,Júlio Toshio Nakashima,Maurício Martins Pereira,José Herbert,Dolabela da Silveira +5 more
TL;DR: In this paper, the authors show the correlations between mechanical properties of API 5L-X70 steel plates and the strain degree applied during the finishing stage of controlled rolling and show that heavy thickness reduction during the final stage has little effect over mechanical strength, but significantly improves toughness.