DUPLEX STAINLESS-STEELS - A HIGH MECHANICAL-PROPERTIES STAINLESS-STEELS FAMILY

Background/aims: Duplex stainless steels constitute a high strength st ainless steel family with high corrosion resistance properties. The us e of them has dramatically grown in the last 10 years, particularly in the fields of off-shore, chemical tankers and chemical industries; ho wever, the high strength also makes them suitable for many other appli cations. Results and conclusions: After a short presentation of the te chnical history, the main mechanical properties including those of wel ded joints are presented and discussed related to the microstructural aspects. Comparison with other materials, new potential applications a nd future research axes are also discussed.