Microstructural and Corrosion Resistance of Lean Duplex Stainless Steel UNS S32304 Welded by SAW with Cold Wire Addition
| Autor: | Paulo José Modenesi, Brunela Pereira da Silva, Ronaldo Cardoso Junior, Neice Ferreira dos Santos, Luiza Esteves, Wagner Reis da Costa Campos, Idalina Vieira Aoki, João Henrique Nery Garcia |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
POLARIZAÇÃO Materials science General Chemical Engineering Metallurgy 02 engineering and technology General Chemistry Welding 021001 nanoscience & nanotechnology Chloride Submerged arc welding Corrosion law.invention 020901 industrial engineering & automation law Duplex (building) medicine General Materials Science 0210 nano-technology Polarization (electrochemistry) medicine.drug |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1938-159X 0010-9312 |
| Popis: | The results of the corrosion tests, in chloride environment, of lean duplex stainless steel UNS S32304 welded by submerged arc welding (SAW) process variant with cold wire, indicated that the sample with higher heat input heat input (HI) (2.7 kJ/mm) had higher corrosion resistance, which can be explained by higher amount of austenite and lower amount of precipitates. Therefore, the results indicate that the use of HI above the limit recommended by literature (2.5 kJ/mm) may produce welds with adequate corrosion resistance with SAW with cold wire addition, because this technique has the potential to deliver higher productivity still controlling the process HI. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|