Analysis of Cracking Cause for Generator Stator Cooling Water System Stainless Steel Tube Base in a Nuclear Power Plant
The stainless steel tube base of generator stator cooling water system leaked during the operation of a nuclear power plant.In order to find out the reason,the failure analysis of cracked tube base was carried out by means of macro-scopic and microscopic structure analysis and composition analysis.The results show that the stainless steel tube base has high cycle fatigue cracking failure.Rectification measures have been proposed,the leakage problem of stainless steel tube base of generator stator cooling water system during power operation is effectively solved,and it also provides reference for other units to solve similar problems.
nuclear power plantstainless steel tube basefailure analysishigh cycle fatigue cracking
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