|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Comparative Analysis of Mechanical Resistance and Corrosion of the Welded Region of Stainless Steel Lean Duplex 2102 and Stainless Steel Duplex 2205
||Rômulo Barreto Candido, Niander Aguiar Cerqueira, Victor Barbosa de Souza, Daniel Passos Gallo, Afonso Azevedo
|On-Site Speaker (Planned)
The present work established a comparison between the physical, mechanical and corrosion resistance properties of 2205 duplex stainless steels and Lean Duplex 2102 stainless steels, widely used in the offshore industry. Samples welded by the GTAW (TIG) process were tested on plates with 1.5 mm thickness and also solid samples by means of tensile tests at different load application speeds. The with non-welded steels reaching deformations in the range of 10% to 27% in both samples and samples showed deformations in the range of 4% to 7% in both types of steels. Immersion corrosion resistance tests were also carried out. In both cases, the welded samples showed higher corrosion rates in mm / year, due to the welded region and additional elements of the GTAW welding process. Finally, the plates were visually inspected by bending tests, with no cracks or fractures found in the traction region.
||Characterization, Mechanical Properties, Other