论文部分内容阅读
Corrosion-resistant-alloy (CRA) clad steel combines the good mechanical properties of the base material and the excellent corrosion resistance of the cladding material,while also being much more economical than solid CRAs.As gas and oil fields can have high concentrations of H2S,C1-,CO2,and other chemicals,the pipes used to transport gas or oil must have high corrosion resistance and good mechanical properties.UNS N08825 nickel-based alloys with their excellent corrosion resistance can be a good cladding material in clad steel.In this paper,UNS N08825 + X65 clad steel was produced by two different processes.The thermomechanical and quenching and tempering processes were investigated and their mechanical properties and corrosion resistance were compared.Intergranular corrosion and pitting corrosion tests were conducted and the results were evaluated.A high-pressure and high-temperature gas-field environment was also simulated to test the stress corrosion cracking of the steel.The results show that both clad plates have good mechanical properties and excellent corrosion resistance.The experimental results were compared and the differences between the two processes were identified and discussed.