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- W2368641799 abstract "The oil-water-gas multiphase flow environment was simulated at high temperature and high pressure autoclave,the CO2 corrosion behavior of low Cr X70 pipeline steel was studied.The corrosion rate of the steel was calculated by the mass-loss method,and the micrograph,microstructure and component of the corrosion scales were observed and analyzed by scanning electron microscopy,energy dispersive spectrometer and X-ray diffraction techniques.The results show that,with the increase of environmental temperature,the average and pitting corrosion rates of X70 steel increase first and then decrease.The average corrosion rate and the pitting corrosion rate is up to the highest valum at 60 ℃ and 90 ℃,respectively.Cr exists mainly as amorphous compound Cr2O3 in specific layer of the corrosion scales which can hinder anionic to penetrate corrosion products and reach metal matrix,and gradually reduce the pitting corrosion led to Cl-.The proportion of FeCO3 in corrosion product scale increases gradually with the increase of environmental temperature." @default.
- W2368641799 created "2016-06-24" @default.
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- W2368641799 date "2011-01-01" @default.
- W2368641799 modified "2023-09-27" @default.
- W2368641799 title "CO_2 Corrosion Behavior of Low Cr X70 Pipeline Steel in Oil-water-gas Multiphase Flow" @default.
- W2368641799 hasPublicationYear "2011" @default.
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