Possibility of temporary use of pipe bends of steam power plants damaged by creep pores
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In the operation of the power equipment of steam power plants the steam pipe bends can be damaged at a temperature exceeding 500°C. The presence of creep pores (especially pore chains) in the metal of a bend operating for a long time indicates that the service life of the bend has been exhausted. However, it remains unclear whether it is possible to use it again and when it should be replaced. The present analysis of the results of a study of the metal of damaged bends makes it possible to determine the possibility and the time of temporary operation of bends with pores and pore chains.
KeywordsFerrite Steam Bainite Equivalent Stress Bainite Structure
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