High Temperature Oxidation Properties of Cr/C Coating on 4Cr10Si2Mo Steel by Plasma Immersion Ion Implantation and Deposition

Abstract:

Thin Cr/C film was synthesized on 4Cr10Si2Mo steel substrates by Plasma Immersion Ion Implantation and Deposition (PIIID). The high-temperature oxidation behavior of Cr/C Coating at 900°C for 100 hours in air atmosphere was investigated. The results show that the Cr/C coating on 4Cr10Si2Mo steel by PIIID process has excellent high-temperature resistance and antioxidant properties. After the oxidation behavior for 100 hours, the surface of coated specimen maintains completely and the Cr/C coating has a good bonding force with substrates. The composition of the oxidation scale and the surface morphology were studied by using XRD and SEM. An uncoated sample and a hard chromium plating sample with same substrate took part in the experiment in same condition for comparing.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 2306-2309
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.2306
• Online since: May 2011
• Authors: Yun Peng Chang, Hui Zhi Xi, Shu Ai Shao
• Keywords: Cr/C Coating, Exhaust Valve, High-temperature Oxidation Properties, Plasma Immersion Ion Implantation and Deposition (PIIID)

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