Experimental study of corrosion behavior between the material-type and process-type super-high sucker rod steels in a near neutral high sulfide environment
Source abstract
Abstract
Corrosion behavior of material-type (HL) and process-type (HY) super-strength sucker rod steels 11Mn2SiCrMoA (BZ-11H) and 30CrMoA in a high sulfide-containing solution is investigated by electrochemical measurement, weight loss method, electron probe micro analysis (EPMA), energy dispersive X-ray (EDX) and X-ray diffraction (BZ-11H) analysis, respectively. The results show that BZ-11H steel has a higher corrosion resistance than 30CrMoA in the near neutral high sulfide environment. EDX and XRD analysis results indicate that the corrosion processes of these two materials are mainly controlled by the small amount of alloy elements they contain, which also determine the contents of corrosion product deposits and the difference in corrosion rates. The interactions between Fe, SO42−, CO2 and O2 lead to the formation of FeS, FeCO3 and Fe2O3, and consequently cause the difference in corrosion rate or corrosion resistance.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Hydrogen embrittlement and corrosion behaviors in metals · Corrosion Behavior and Inhibition · Petroleum Processing and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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