Review of Creep Resistant Alloys for Power Plant Applications
نویسنده
چکیده
Creep resistant alloys designed for power plant applications like thick section boiler components, steam lines, turbine rotors and turbine castings must be reliable over long periods of time in sever environments. Besides high creep strength these materials must exhibit also other properties, i.e. good corrosion and crack resistance as well as good weldability. The environmental impact and economics have forced a development of high efficiency and low emission systems of power plants. Namely, the increase in the thermal efficiency of power plant can be most effectively achieved by increasing the temperature and the pressure of steam entering the turbine. Hence, the new materials with better properties which can operate at these conditions have to be developed 1,2 .
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