The phrase "a certain corrosion" is correct and usable in written English.
It can be used when referring to a specific type or instance of corrosion without naming it directly.
Example: "The engineer noted a certain corrosion on the metal surface that required further investigation."
Alternatives: "a specific corrosion" or "a particular corrosion".
Therefore, a certain crevice corrosion rapidly would occur due to the localized attack during the corrosion investigation.
The bond strength will decrease sharply with corrosion, which means at certain corrosion level the corroded reinforced concrete slab failure model will not be controlled only by flexural failure.
Therefore, the non-Faradaic material loss is likely a result of certain corrosion-aided mechanical damage mechanisms.
The Tafel curve showed that the modified electrode had a relatively high positive corrosion potential and a relatively low corrosion current density, indicating that the modified electrode could sustain a certain degree of corrosion.
The surface layer of the SFPB-ed low-carbon steel was dissolved after a certain time of corrosion, which led to the decrease of its corrosion rate.
Hydrogen sulfide not only can cause a certain degree of corrosion to equipment and line, but also has the serious threat to personal safety.
(4) Among two reported studies on the effect of crack frequency (number of cracks in a certain length) on corrosion of steel in cracked concrete, no trend can be established.
Concerning the propagation period, the electrical resistivity is an indication of the moisture content of concrete and therefore, it has a certain relationship with the corrosion cement.
The service life includes a certain propagation period of corrosion during which the cross-sectional area of steel is progressively decreased, the bond between steel and concrete is reduced and the effective cross-sectional area of concrete is diminished due to spalling of the cover.
The impedance diagrams for buried structure in the presence of a local corrosion deviate from those in the absence of local corrosion below a certain frequency which is determined mostly by the distance between the local corrosion site and the probe electrode.
