Effect of current type on microstructure and corrosion resistance of super duplex stainless steel claddings produced by the gas tungsten arc welding process

2014 ◽  
Vol 244 ◽  
pp. 45-51 ◽  
Author(s):  
Abbas Eghlimi ◽  
Morteza Shamanian ◽  
Keyvan Raeissi
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Duplex Stainless Steel ◽  
Arc Welding ◽  
Welding Process ◽  
Gas Tungsten Arc Welding ◽  
Super Duplex Stainless Steel ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Arc Welding Process

The characterization of corrosion resistance in the Ti-6Al-4V alloy fusion zone using a gas tungsten arc welding process

2009 ◽  
Vol 24 (12) ◽  
pp. 3680-3688 ◽  
Author(s):  
L.M. Wang ◽  
H.C. Lin
Keyword(s):  
Corrosion Resistance ◽  
Oxide Layer ◽  
Fusion Zone ◽  
Arc Welding ◽  
Welding Process ◽  
Heat Treatments ◽  
Gas Tungsten Arc Welding ◽  
Gas Tungsten Arc ◽  
Gas Tungsten ◽  
Arc Welding Process

The Ti-6Al-4V sheet alloys were welded by using a common gas tungsten arc welding process. In this work, we study the correlation of corrosion resistance and oxide layer structure produced after commonly used industrial heat treatments. We also study the oxide scales that were formed as a result of the heat-related treatment/aging process. The results indicate that better corrosion resistance of the Ti-6Al-4V alloy weldment can be obtained and significantly improved by a solution treatment plus an artificial aging (ST+AA) treatment, owing to the enhanced intensity of TiO2, V2O5, and Al2O3 oxides that compacted and grew on the surface of fusion zone. The newly found γ-TiAl and α2-Ti3Al particles that nucleated in the fusion zone due to different heat treatments do affect the composition of the oxide layer. The possible mechanism for this oxide layer formation in the fusion zone is discussed.

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