AbstractImportance of crevices formed between tubes and tube plate for the operational behaviour of heat exchangers. It must be guaranteed by construction and manufacture of heat exchangers that primary and secondary medium are completely separated from each other. When this requirement is fullfilled, the operational use of heat exchangers can be impaired by corrosion reactions within the crevice formed between tube and tube plate which may result in corrosion damage. The various techniques which are in use to connect tubes and tube plate and which are described in the present report, must be valued with respect to the tightness of the connection as well as to the formation of crevices between tubes and tube plate. Corrosion resistant copperbase alloys and stainless steels are the most important materials which are in use for the construction of heat exchangers. The mechanisms of crevice corrosion with unalloyed and low alloy carbon steels, stainless steels, and mixed connections between tube and tube plate with these materials are described in detail. Crevice corrosion may be caused also by the formation of galvanic cells between materials of differing electrochemical response. Furthermore, the concentration of aggressive media in crevices between tubes and tube plate can lead to corrosion damage of heat exchanger tubes. For the service operation of heat exchangers without any hazard of corrosion damage in crevices between tubes and tube plate, such crevices must be avoided by proper construction and manufacture. As a model for suitable measures to avoid crevices, the manufacture of steam generators for PWR's is described.

Materials and CorrosionVolume 36, Issue 5 p. 219-222 Erfahrungsaustausch und Schadensfalle Interkristalline Spannungsrißkorrosion an Wärmetauscherroheren aus austenitischem Chrom-Nickel-Moloybdän-Stahl Werkstoff Nr. 1.4571(X 10 CrNiMoTi 18 10) Intercrystalline stress corrosion cracking of heat exchanger tubing of austenitic chromium nickel molybdenum steel Werkstoff No. 1.4571 (X 10 CrNiMo Ti 18 10) Dr. Norbert Achten, Dr. Norbert Achten Bergfeld & Heider GmbH & Co KG, Postfach 1120, 9300 BurscheidSearch for more papers by this authorDr. Günter Herbsleb, Dr. Günter Herbsleb Mannesmann Forschungsinstitut GmbH, Postfach 25 11 67, 4100 Duisburg 25Search for more papers by this authorDipl.-Ing. Bernd Pfeiffer, Dipl.-Ing. Bernd Pfeiffer Mannesmann Forschungsinstitut GmbH, Postfach 25 11 67, 4100 Duisburg 25Search for more papers by this authorDr. Paul Schwaab, Dr. Paul Schwaab Mannesmann Forschungsinstitut GmbH, Postfach 25 11 67, 4100 Duisburg 25Search for more papers by this author Dr. Norbert Achten, Dr. Norbert Achten Bergfeld & Heider GmbH & Co KG, Postfach 1120, 9300 BurscheidSearch for more papers by this authorDr. Günter Herbsleb, Dr. Günter Herbsleb Mannesmann Forschungsinstitut GmbH, Postfach 25 11 67, 4100 Duisburg 25Search for more papers by this authorDipl.-Ing. Bernd Pfeiffer, Dipl.-Ing. Bernd Pfeiffer Mannesmann Forschungsinstitut GmbH, Postfach 25 11 67, 4100 Duisburg 25Search for more papers by this authorDr. Paul Schwaab, Dr. Paul Schwaab Mannesmann Forschungsinstitut GmbH, Postfach 25 11 67, 4100 Duisburg 25Search for more papers by this author First published: May 1985 https://doi.org/10.1002/maco.19850360505Citations: 1AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Schrifttum 1 DIN 50 914: Prüfung nichtrostender Stähle auf Beständigkeit gegen interkristalline Korrosion; Kupfersulfat-Schwefels äure-Verfahren; Strauß-Test. 2 MW-Pr üfblatt E 1: Prüfung nichtrostender Stähle auf Beständigkeit gegen interkristalline Korrosion im „verschärften Strauß-Test”︁. 3 ASTM A 262: Standard Recommended Practices for Detecting Susceptibility to Intergranular Attack in Stainless Steels; Practice D – Nitric-Hydrofluoric Acid Test for Detecting Susceptibility to Intergranular Attack in Molybdenum-Bearing Stainless Steels. 4 G. Herbsleb: Spannungsrißkorrosion von sensibilisiertem austenitischem Chrom-Nickel-Stahl × 5 CrNi 189 in Reinwasser bei erhöhten Temperaturen. VGB-Kraftwerkstechnik 67 (1984) 138– 145. Citing Literature Volume36, Issue5May 1985Pages 219-222 ReferencesRelatedInformation