Failure analysis in dissimilar weld (Duplex 2202-Austenítico 201LN).
Abstract
Mechanical behavior of welded metallic components is influenced by internal defects in the weld, such as inclusions and porosity. This work analyzes by means of visual inspection and optical microscopy a pair of dissimilar joints realized by the GMAW process. The study permitted to associate the lack of fusion to the presence of
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References
Zhan X, Zhao Y, Liu Z, Gao O, Bu H. Microstructure and porosity characteristics of 5A06 aluminum alloy joints using laser-MIG hybrid welding. Journal of Manufacturing Processes, 2018; 35: 437–445.
D. Madison JD, Aagesen LK. Quantitative characterization of porosity in laser welds of stainless steel. Scripta Materialia, 2012; 67: 783–786.
Gou G, Zhang M, Chen H, Chena, Li JP, Yang YP. Effect of humidity on porosity, microstructure, and fatigue strength of A7N01S-T5 aluminum alloy welded joints in high-speed trains. Materials and Design, 2015; 85: 309-317.
Guoa N, Fu Y, Xing X, Liu Y , Zhao S , Feng J. Underwater local dry cavity laser welding of 304 stainless steel. Journal of Materials Processing Tech.. 2018; 260: 146-155.
Dwivedy SK., Vishwakarma M. Hydrogen embrittlement in different materials: A review. International Journal of Hydrogen Energy. 2017; 1-14.
Pohl M, Storz O, Glogowski T. Effect of intermetallic precipitations on the properties of dúplex stainless Steel. Materials Characterization. 2007; 58: 65-71.
Escriba DM, Materna-Morris E, Plaut RL, Padilha AF. Chi-phase precipitation in a dúplex stainless Steel. Materials Characterization, 2009; 60: 1214-1219.
