Studying Metal of Nozzles of VVER-440 Pressure Vessel after 45 Years of Operation

Medvedev K. I.,Erak D. Yu.,Chernobaeva A. A.,Zhurko D. A.,Erak A. D.,Bubyakin S. A.,Bandura A. P.

Voprosy materialovedeniâ（2021）

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摘要

This article presents the mechanical properties of metal cut out from the nozzles and the cylindrical part of the nozzle shell of the VVER-440 reactor pressure vessel after its operation for 45 years.

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关键词

nozzle shell,ductile-to-brittle transition temperature,yield stress,ultimate strength,material of VVER-440 reactor pressure vessel

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