INVESTIGATION ON THE SEAWATER CORROSION BEHAVIOUR OF HOT-GALVANISED PROTECTIVE COATINGS ON STEEL. PART 1: EXPERIMENTAL RESULTS

In a brief review of the literature on the seawater corrosion of galvanised coatings and of zinc itself, the Authors mention inter alia some misconceptions that have arisen. An account is then given of tests in which the corrosion behaviour of the zinc coatings on hot-galvanised steel specimens was investigated. Three groups of tests were carried out: (i) tests on plate specimens immersed for up to a year in the Baltic; (ii) closed-circuit flow tests on pipe specimens in the laboratory; and (iii) tests on rotating disc specimens (at a peripheral speed of 10.1 metres per sec.) in the laboratory. The artificial seawater used in the laboratory tests were renewed every four weeks, and its temperature was kept at about 30 degrees C. In all the tests, corrosion was measured by weighing. The experimental methods are described, and the results (in particular those from the rotating-disc tests) are presented in some detail and discussed. Several conclusions are drawn, and some recommendations are made on the further development of hot-galvanising techniques. Order from: BSRA as No. 48,411.

  • Corporate Authors:

    Institut fuer Schiffbau

    Wismarsche Strasse 617
    25 Rostock,   Germany 
  • Authors:
    • Bohm, D
    • Willert, H
  • Publication Date: 1977

Language

  • German

Media Info

  • Features: References;
  • Pagination: 7 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00179223
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Report/Paper Numbers: No.3/4
  • Files: TRIS
  • Created Date: Aug 19 1978 12:00AM