Precipitation in a High Nitrogen Superaustenitic Stainless Steel
| Autor: | S. Heino, Birger Karlsson, M. Knutson-Wedel |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Materials science
Precipitation (chemistry) Mechanical Engineering Metallurgy Intermetallic chemistry.chemical_element Welding engineering.material Condensed Matter Physics Nitrogen law.invention chemistry Electron diffraction Mechanics of Materials law engineering General Materials Science Grain boundary Austenitic stainless steel |
| Zdroj: | Materials Science Forum. :143-150 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.318-320.143 |
| Popis: | Precipitation in a superaustenitic stainless steel of composition 24Cr-22Ni-7.3Mo-3Mn-0.5N (wt%) has been investigated. Heat treatment at 1050°C for 5 min caused a precipitate structure fairly well resembling that observed in the heat-affected zone after welding. Four different types of precipitates were identified: σ and X with size 200 to 500 nm, accompanied by Laves and R with size 50 to 200 nm. Precipitates of σ and X with faceted shapes appeared in some grain boundaries, while Laves and R with more rounded shapes coexisted in other grain boundaries and with more uniform distribution. |
| Databáze: | OpenAIRE |
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