Steel HP40 Coated by Alumina Film and Its Anticoking Ability

Alumina film was deposited on the steel HP40 surface using metal-organic chemical vapor deposition technology,then its anti-coking ability was investigated by means of EDS and scanning electron microscopy (SEM).The experimental results showed that this film could obtain anti-coking ability under the condition of high temperature and its anti-coking ratio was 65%,highly improved the anti-coking ability of steel HP40.