Thermodynamics of the mechanico-chemical effect

Gutman, É. M.

doi:10.1007/bf00714947

Cited by 10 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specimens in the SRB-inoculated soil solution display a relatively negative OCP under the same level stresses, which was a common phenomenon for carbon steel in near-neutral pH soil environments [32]. According to the mechano-chemical theory by Gutman [33,34], the electrode potential of metals is affected by applied stress, and a tensile stress (ΔP > 0) would decrease the electrode potential and enhance the corrosion tendency of metals. In the experiments, with the applied stress increasing, a little decrease in OCP of the specimens is shown in Figure 2, in both the sterile and SRB-inoculated environments.…”

Section: Ocp and Lprmentioning

confidence: 99%

A study on bacteria-assisted cracking of X80 pipeline steel in soil environment

Sun

et al. 2018

Corrosion Engineering, Science and Technology

View full text Add to dashboard Cite

In the paper, bacteria-assisted cracking by sulphate-reducing bacteria (SRB) of X80 pipeline steel in a meadow soil solution was studied under different applied stresses by electrochemical impedance spectroscopy, linear polarisation resistance and scanning electron microscope. The obtained results indicated that the physiological activity of SRB and the applied stresses not only play individual roles in corrosion of the steel, but also had intense synergistic effects in promoting the corrosion process. In the SRB-inoculated soil solution, the number, average length and width of micro-cracks increase to a certain extent. Under the combined actions of SRB and plastic stress, localised corrosion may not only extend to steel matrix but also to lateral direction. The generation processes of bacteria-assisted cracking were discussed in the paper.

show abstract

Section: Ocp and Lprmentioning

confidence: 99%