Corrosion behaviour and microstructure of the TIG-MIG hybrid welded dissimilar UNS 2205 and IS 2062 steels
- 1. Department of Mechanical EngineeringSSM Institute of Engineering and Technology Palani-Dindigul, Tamilnadu (India)
- 2. Er. Perumal Manimekalai College of Engineering, Tamilnadu (India)
Description
Dissimilar metal joining of duplex stainless steel to carbon steel was performed using a hybrid welding system. A tungsten inert gas (TIG) welding and metal inert gas (MIG) welding based hybrid welding system was designed. The microstructures of the dissimilar metal joints were studied and the grains were coarser when compared to the single welding process alone. The addition of TIG welding to the MIG welding improves the wettability of the molten metal pool. The nominal corrosion behaviour of the weldments was found better than the single arc welding system alone. The passivation behaviour of the joints was in the similar line to that of duplex stainless steel base metal. The pitting resistance of the joints in 1M NaCl solution was inferior to the base metals. Key words: stainless steels, dissimilar joints, UNS 2205, IS 2062, microstructures, corrosion behaviour
Additional details
Identifiers
Publishing Information
- Journal Title
- Comptes Rendus de l'Academie Bulgare des Sciences
- Journal Volume
- 72
- Journal Issue
- 10
- Journal Page Range
- p. 1403-1408
- ISSN
- 1310-1331
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 51004313
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CARBON STEELS; CORROSION; JOINING; METALS; MICROSTRUCTURE; STAINLESS STEELS; WETTABILITY
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; ELEMENTS; FABRICATION; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; STEELS; TRANSITION ELEMENT ALLOYS