| Titre : | Modified EPR-DL method for detection of the spinodal decomposition of 2205 duplex stainless steel (2012) |
| Auteurs : | J. Stoulil, Auteur ; J. Bystriansky, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Materials and corrosion (Vol. 63 N° 7, Juillet 2012) |
| Article en page(s) : | pp. 593–597 |
| Note générale : | Génie mécanique |
| Langues : | Anglais |
| Tags : | Duplex stainless steel ; EPR-DL ; microhardness ; spinodal decomposition |
| Résumé : | The presented work deals with the possibility of electrochemical detection of the spinodal decomposition of duplex stainless steel's ferritic phase using the modified electrochemical potentiodynamic reactivation double loop (EPR-DL) method. Specimens of FeCr23Ni6Mo3N (2205) steel exposed to the model low-temperature annealing at 420 °C for up to 1000 h were used in the experiment. The specimens were evaluated using potentiodynamic curves measurements in chloride solutions and microhardness measurements. Despite hardening the ferritic phase for up to 1 h, a substantial drop of resistance to attack by chlorides was reported only after 1000 h of annealing. The modified EPR-DL method in 2 M HCl + 0.1 M KSCN solution enables sensitive identification of the spinodal decomposition rate already from early stages. |
| En ligne : | http://onlinelibrary.wiley.com/doi/10.1002/maco.201106127/abstract |
