Open Access

ARTICLE

Ductile to Brittle Transition Behavior of Super Duplex Stainless Steels

Guocai Chai

Structural Durability & Health Monitoring 2007, 3(3), 191-196. https://doi.org/10.3970/sdhm.2007.003.191

Abstract

Duplex stainless steels (DSS) are a group of steels consisting of approximately equal volume fraction of austenite and ferrite. In this study, the influences of the factors such as hydrogen, ferrite phase, cold deformation, grain size, and cluster due to the spinodal decomposition and precipitates or secondary phases in a super duplex stainless steel on the ductile to brittle transition (DBT) are investigated. Three types of DBT curves: toughness versus temperature, hardness and amount of precipitates, have been built to describe the DBT behavior in DSS. These curves are important to provide the information about the critical conditions or criteria where a possible ductile to brittle transition can occur. They can be used as references for different applications.

---

Keywords

---