Hot-Wire Gas Tungsten Arc Welding Cladding of Super Austenitic Stainless Steel on Low Carbon Steel
Source abstract
Abstract
Arc welding techniques for applying austenitic stainless steel cladding to low-carbon steels are common. Cladding enhances surface properties, increases corrosion resistance, improves product performance, extends service life, and reduces maintenance costs associated with surface corrosion. The hot-wire gas tungsten arc welding (HW-GTAW) method offers several benefits, making it appealing for cladding applications. This research investigates the use of HW-GTAW to clad low-carbon steels with super-austenitic stainless steel, examining macro and microstructures, mechanical strength, corrosion resistance, and wear performance. Two conditions were tested: one without a hot-wire, called CW-GTAW (cold-wire), and one with a hot-wire, called HW-GTAW. The HW-GTAW process reduced the dilution rate, thereby benefiting cladding. Microstructural analysis showed that both conditions exhibited elongated columnar dendrites in the heat-affected zone and a shallow region of equiaxed dendrites near the surface. The HW-CL condition displayed slight improvements in corrosion and wear resistance, but both samples outperformed the uncoated base material. These findings support the expanded application of super austenitic stainless steels and HW-GTAW in cladding processes.
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Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Welding Techniques and Residual Stresses · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Industy, São Paulo Federal Institute of Education, Science and Technology, Campus Itapetininga, Av. João Olímpio de Oliveira 1561, Itapetininga 18202-000, SP, Brazil
Department of Mechanical Engineering, Sao Paulo State University, Avenue Brasil 56, Ilha Solteira 15385-000, SP, Brazil
Department of Industrial Engineering, University of Padua, Via Gradenigo, 6/a, 35131 Padova, Italy
Funding
FAPESP—São Paulo Research Foundation, Brazil · São Paulo Federal Institute of Education, Science and Technology
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