Effect of applied tensile stress on steam oxidation behavior of P92 steel
Creep-oxidation interrupt tests were adopted in order to study mechanochemical behavior of P92 steel in high temperature steam environment.Weight gain method was adopted to get the oxidation kinetics under different applied loading in steam at 600 ℃.With the increasing of applied tensile stress, the weight gain was increased.Furthermore, Scanning electron microscope (SEM), Energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) analysis indicated a multilayer with hematite (Fe2O3), magnetite (FehO4) and iron chromium crystal oxide which formed by inward and outward diffusion of oxygen and Fe/Cr ions for both with and without applied tensile loading.A theoretical oxidation kinetic model which coupled with oxidation growth stress and creep mismatch stress was built up and agreed well with the experimental results.
Creep Steam Oxidation Tensile stress P92 steel
Yuhui Huang Fuzhen Xuan Bo Yang Shuo Weng
Key Laboratory of Pressure Systems and Safety, Ministry of Education;School of Mechanical and Power Shanghai Institute of Special Equipment Inspection and Technology Research, No399.North Nujiang Road
国际会议
长沙
英文
158-164
2016-10-16（万方平台首次上网日期，不代表论文的发表时间）