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Technical Brief

Improvement of Corrosion Resistance of Dissimilar Welded Joints in Secondary Circuit VVER

[+] Author and Article Information
Samek Petr

University of West Bohemia, Univerzitní 22, 306 14 Plzen, Czech Republic
petr.samek01@cez.cz

Chocholaty Ondrej

University of West Bohemia, Univerzitní 22, 306 14 Plzen, Czech Republic
chochola@kmm.zcu.cz

Cancura Zdenek

ČEZ, a. s., Specific Processes and Technical Quality Management Department, NPP Temelín, 373 05 Temelín, Czech Republic
samek@kmm.zcu.cz

Kriz Antonin

University of West Bohemia, Univerzitní 22, 306 14 Plzen, Czech Republic
kriz@kmm.zcu.cz

1Corresponding author.

ASME doi:10.1115/1.4043105 History: Received November 19, 2018; Revised February 26, 2019

Abstract

This article presents experimental program, focused on extending lifetime and operation reliability of dissimilar welded joints of austenitic and perlite steel in conditions of secondary circuit media of VVER unit. The main purpose of this experimental program is to bring new possibilities of corrosion protection of dissimilar welded joints, which are threatened by corrosion and degradation processes. These degradation processes significantly affect their service life. Suitability and corrosion behavior of thermal sprayed coatings were tested.

Copyright (c) 2019 by ASME
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