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The effects of sediment water from crude oil on Q235B carbon steel corrosion were investigated through electrochemical measurements, surface characterization, mass loss, and mass gain techniques for 11 weeks of immersion. Results showed that the steel surfaces were covered by scale deposits consisting mainly of CaCO3. Corrosion pits were initiated under the scale deposits. Moreover, a galvanic corrosion...
An amorphous boron carbide (a-BC) coating was prepared by LPCVD process from BCl 3 –CH 4 –H 2 –Ar system. XPS result showed that the boron concentration was 15.0at.%, and carbon was 82.0at.%. One third of boron was distributed to a bonding with carbon and 37.0at.% was dissolved in graphite lattice. A multiple-layered structure of CVD SiC/a-BC/SiC was coated on 3D C/SiC composites...
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