Impact of Heat Input on the Cladding of Super Austenitic Stainless Steel Through the Gas Tungsten Arc Welding Process on ASTM A516 Grade 70 Steel
Source abstract
Abstract
The cladding process reduces manufacturing costs by depositing super austenitic stainless steel onto low-carbon steel. Arc welding techniques, especially gas tungsten arc welding (GTAW), are commonly used for this purpose. This study evaluates the influence of heat input on cladding performance. Macroscopic analysis showed good fusion of the weld beads to the base metal with no defects. Higher heat input resulted in a lower dilution rate due to increased reinforcement. A microstructural analysis of the heat-affected zones revealed similar characteristics, with martensite formation attributed to cooling conditions. Increased microhardness was observed at the interface between the cladding and base metal, corroborating the microstructural findings. Additionally, a significant enhancement in corrosion resistance was noted in the deposited layers. This research contributes to optimizing cladding processes, ensuring better material performance in industrial applications.
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Research context
OpenAlex topics: Welding Techniques and Residual Stresses · Hydrogen embrittlement and corrosion behaviors in metals · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
São Paulo Federal Institute of Education, Science and Technology, Campus Itapetininga, Itapetininga 18202-000, Brazil
Mechanical Engineering Department, Campus of Ilha Solteira, UNESP, São Paulo State University, Ilha Solteira 15385-000, Brazil
Department of Industrial Engineering, University of Padua, 35122 Padova, Italy
Funding
FAPESP—São Paulo Research Foundation, Brazil
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