Assessment of Sulfide Corrosion and Wear Behavior of HVOF-Sprayed Cr3C2–25NiCr Coating on 304 Stainless Steels in H2S Environment
- Resource Type
- Original Paper
- Authors
- Huang, Chenhao; Wang, Jun; Yan, Jing; Li, Longyi
- Source
- Transactions of the Indian Institute of Metals. 76(12):3219-3228
- Subject
- HVOF
Cr3C2–25NiCr coating
Corrosion
H2S
- Language
- English
- ISSN
- 0972-2815
0975-1645
To prevent corrosion or abrasion damage of equipment used in hydrogen sulfide (H2S) and sand conditions, high wear and corrosion-resistant coatings are needed. In this study, a cemented carbide Cr3C2–25NiCr coating was applied to 304 stainless steel substrate via high-velocity oxygen fuel thermal spraying to investigate its wear and corrosion resistance in an oil and gas field model environment. The coating exhibits high hardness (1062.4HV0.1) that is five times greater than the substrate and a 50% reduction in wear pit depth. The corrosion rate of the coating is 72% less than that of stainless steel (0.17 mm/y). These results suggest that Cr3C2–25NiCr coating has great potential for use in the oil and gas industry.