Analysis of the Cause of Damage to the Steam Generator Cold Collector’s Dissimilar Weld Joint at Slovak Nuclear Power Plant

التفاصيل البيبلوغرافية
العنوان: Analysis of the Cause of Damage to the Steam Generator Cold Collector’s Dissimilar Weld Joint at Slovak Nuclear Power Plant
المؤلفون: Kapusnák, Michal, Hajas, Michal, Adamech, Marek
المصدر: Diffusion and Defect Data Part A: Defect and Diffusion Forum; November 2020, Vol. 405 Issue: 1 p165-170, 6p
مستخلص: By the non-destructive testing of a dissimilar weld joint (DWJ) of cold collector DN 1100 (CC) on a steam generator, indications were found on inner-side cold collector’s surface at the root position of the examined weld. All the identified indications were very similar in shape and form, therefore, it was decided to cut out a part of the damaged site from this type of DWJ DN 1100 and get the obtained ring (real piece of material) for complex metallographic analysis. This paper briefly describes the results and recommendations found for the future reference during the next long-term operation induced ageing and degradation of critical steam generator parts in NPP Bohunice Unit 4. There are summarized the results obtained from evaluation of original DWJ material.
قاعدة البيانات: Supplemental Index
الوصف
تدمد:10120386
16629507
DOI:10.4028/www.scientific.net/DDF.405.165