Hybrid laser/arc welding of 304L stainless steel tubes, part 2 – Effect of filler wires on microstructure and corrosion behavior

2018 ◽  
Vol 163 ◽  
pp. 45-54 ◽  
Author(s):  
Nima Yazdian ◽  
Masoud Mohammadpour ◽  
Reza Razavi ◽  
Radovan Kovacevic
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
Arc Welding ◽  
304L Stainless Steel ◽  
Steel Tubes ◽  
Hybrid Laser Arc Welding

scholarly journals Investigation of Microstructure and Corrosion Resistance of Dissimilar Welded Joint between 304 Stainless Steel and Pure Copper

2019 ◽  
Vol 1 (3) ◽  
pp. 76-82
Author(s):  
Sorush Niknamian
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Arc Welding ◽  
Pure Copper ◽  
Welding Process ◽  
Steel Part ◽  
304 Stainless Steel ◽  
Dissimilar Metals ◽  
304L Stainless Steel ◽  
Shielded Metal Arc Welding

Nowadays, welding of dissimilar metals has become significant. In this process, a number of parameters including but not limited to type of electrode, amount of current, preheating temperature, and welding rate, that are essential to be taken into account. For welding of dissimilar metals, various methods are exploited including shielded metal arc welding (SMAW) and gas tungsten arc welding (GTAW). The stimulus for studying welding of 304L stainless steel to pure copper originates from difficulties in joining copper parts of           water-circulating molds to their steel part. In this study, the welding is performed on plates of steel and copper using SMAW, GTAW and combined SMAW+GTAW welding methods with    EL-CuMn2, ENiCrMo-6 and ER70S-4 electrodes. In order to investigate the microstructure and corrosion resistance behavior of welds, the samples were characterized using microstructural study and polarization test. It was observed that among all four welding methods, only combined SMAW+GTAW welding process resulted in successful joint between 304L stainless steel and copper. Both obtained joints possess suitable microstructure and corrosion resistance.

Effect of texture on corrosion behavior of AISI 304L stainless steel

2005 ◽  
Vol 54 (2) ◽  
pp. 141-147 ◽  
Author(s):  
B. Ravi Kumar ◽  
Raghuvir Singh ◽  
Bhupeshwar Mahato ◽  
P.K. De ◽  
N.R. Bandyopadhyay ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
304L Stainless Steel ◽  
Aisi 304L ◽  
Aisi 304L Stainless Steel

Welding Process Development for Spent Nuclear Fuel Canister Repair

2019 ◽  
Author(s):  
Wei Tang ◽  
Stylianos Chatzidakis ◽  
Roger Miller ◽  
Jian Chen ◽  
Doug Kyle ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stainless Steel ◽  
Nuclear Fuel ◽  
Arc Welding ◽  
Spent Nuclear Fuel ◽  
Welding Process ◽  
Tensile Residual Stress ◽  
304L Stainless Steel ◽  
Welding Temperature ◽  
Stress Direction

Abstract The potential for stress corrosion cracking (SCC) of welded stainless-steel interim storage containers for spent nuclear fuel (SNF) has been identified as a high priority data gap. This paper presents a fusion welding process that was developed for SNF canister repair. Submerged arc welding (SAW) was developed to weld 12.7 mm (0.5 in.) thick 304L stainless steel plates to simulate the initial welds on SNF canisters. The SAW procedure was qualified following ASME Boiler and Pressure Vessel Code requirements. During SAW, the welding temperature was recorded at various locations by using thermocouples. After SAW, weld microstructures were characterized, joint mechanical properties were tested, and the maximum tensile residual stress direction was identified. After SAW procedure qualification, artificial cracks were excavated perpendicular to the maximum tensile residual stress direction in the SAW heat affected zone. Machine cold-wire gas tungsten arc welding (CW-GTAW) was developed and used for repair welding at cracked locations.

Corrosion behavior of oxidized 304L stainless steel with the application of silver and platinum deposits

MRS Advances ◽  
2021 ◽  
Author(s):  
C. Gutiérrez-Wing ◽  
A. Contreras-Ramírez ◽  
M. E. Fernández-García ◽  
I. Martínez-Mera ◽  
C. R. Arganis-Juárez
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
304L Stainless Steel
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