Biotic enhancement of Desulfovibrio desulfuricans on multi-factor influenced corrosion of X80 steel in saline soil
Qingyu Qin, Jin Xu, Boxin Wei, Qi Fu, Changkun Yu, Cheng Sun, Zhenyao Wang
Abstract
The corrosion behavior of X80 steel in the condition presence of AC, Desulfovibrio desulfuricans and elastic stress was investigated in saline soil. D. desulfuricans and AC promoted the pitting corrosion, giving rise to crack initiation when the stress was applied. The corrosion rate of X80 steel in the three-factor system was the highest, reaching 0.535 mm a−1. The synergistic factor of D. desulfuricans was larger than other two factors, indicating microbes played a critical role in enhancing the synergistic effect of AC, D. desulfuricans, and stress.
Topics & Concepts
CorrosionMetallurgyMaterials scienceStress (linguistics)Pitting corrosionSalineEndocrinologyLinguisticsPhilosophyMedicineCorrosion Behavior and InhibitionConcrete Corrosion and DurabilityHydrogen embrittlement and corrosion behaviors in metals