Pitting holes of steel A3 in T.f solution were deeper after 20 days of exposure, the presence of Thiobacillus ferrooxidans aggravated the localized corrosion of A3 steel.

• 随着时间的延长，A3钢表面的点蚀坑深度增大且数量增多，氧化亚铁硫杆菌的存在使A3钢的局部腐蚀程度加剧。