The effect of nitrate reducing bacteria on the corrosion behavior of X80 pipeline steel in the soil extract solution of Shenyang

2021 ◽  
Vol 190 ◽  
pp. 104313
Author(s):  
Qi Fu ◽  
Jin Xu ◽  
Boxin Wei ◽  
Qingyu Qin ◽  
Liqun Gao ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Pipeline Steel ◽  
Soil Extract ◽  
X80 Pipeline Steel ◽  
Extract Solution ◽  
Reducing Bacteria ◽  
Nitrate Reducing Bacteria

scholarly journals Effect of Alternating Current and Sulfate-Reducing Bacteria on Corrosion of X80 Pipeline Steel in Soil-Extract Solution

Materials ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 144 ◽  
Author(s):  
Yongchang Qing ◽  
Yunlong Bai ◽  
Jin Xu ◽  
Tangqing Wu ◽  
Maocheng Yan ◽  
...  
Keyword(s):  
Current Density ◽  
Pipeline Steel ◽  
Sulfate Reducing Bacteria ◽  
Alternating Current ◽  
Soil Extract ◽  
X80 Pipeline Steel ◽  
Sulfate Reducing ◽  
Extract Solution ◽  
Ac Current ◽  
Reducing Bacteria

AC corrosion has been considere d as a threat to the corrosion of buried pipelines. Effects of sulfate-reducing bacteria (SRB) and alternating current (AC) on corrosion of X80 pipeline steel in soil-extract solution were investigated by electrochemical and surface analysis techniques. AC current can inhibit the growth of planktonic and sessile SRB. The corrosion current density of steel with 10 mA/cm2 AC current is about nine times bigger than that without AC current. Corrosion morphology changes from small pitting to large pitting holes with increasing AC current density. Corrosion of steel with SRB and AC current is controlled by both active dissolution of iron and film degradation.

Sign in / Sign up

Export Citation Format

Share Document