TY - JOUR
T1 - Role of microstructure on corrosion of duplex stainless steel in presence of bacterial activity
AU - Antony, P
AU - Singh, Raman Raghuvir Kumar
AU - Raman, R
AU - Kumar, Pradeep
PY - 2010
Y1 - 2010
N2 - This paper presents the results on microbiologically influenced corrosion (MIC) of UNS S31803 duplex stainless steel (DSS) in as-received, thermally aged and welded conditions in 3.5 NaCl-based medium containing bacteria. Crevice corrosion was noticed underneath the biofilm. For as-received DSS, the corrosion was generally limited to the austenite phase, whereas in thermally aged condition a uniform dissolution of the matrix was noticed and the secondary phases were remained as skeleton. Detachment of intragranular austenite was observed in the heat affected zone (HAZ) of the weldment. The MIC behavior was found to be influenced by the microstructural changes which occurred due to the thermal treatments.
AB - This paper presents the results on microbiologically influenced corrosion (MIC) of UNS S31803 duplex stainless steel (DSS) in as-received, thermally aged and welded conditions in 3.5 NaCl-based medium containing bacteria. Crevice corrosion was noticed underneath the biofilm. For as-received DSS, the corrosion was generally limited to the austenite phase, whereas in thermally aged condition a uniform dissolution of the matrix was noticed and the secondary phases were remained as skeleton. Detachment of intragranular austenite was observed in the heat affected zone (HAZ) of the weldment. The MIC behavior was found to be influenced by the microstructural changes which occurred due to the thermal treatments.
UR - http://www.sciencedirect.com/science/article/pii/S0010938X09006027
U2 - 10.1016/j.corsci.2009.12.003
DO - 10.1016/j.corsci.2009.12.003
M3 - Article
SN - 0010-938X
VL - 52
SP - 1404
EP - 1412
JO - Corrosion Science
JF - Corrosion Science
IS - 4
ER -