Accession Number : ADA125600


Title :   Metallized Coatings for Corrosion Control of Naval Ship Structures and Components.


Descriptive Note : Final rept.


Corporate Author : NATIONAL MATERIALS ADVISORY BOARD (NAS-NAE) WASHINGTON DC


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a125600.pdf


Report Date : Feb 1983


Pagination or Media Count : 115


Abstract : In attempting to improve corrosion control, the U.S. Navy has undertaken a program of coating corrosion-susceptible shipboard components with thermally sprayed aluminum. In this report the program is reviewed in depth, including examination of processes, process controls, the nature and properties of the coatings, nondestructive examination, and possible hazards to personnel. The performance of alternative metallic coating materials is also discussed. It is concluded that thermally sprayed aluminum can provide effective long-term protection against corrosion, thereby obviating the need for chipping of rust and repainting by ship personnel. Such coatings are providing excellent protection to below-deck components such as steam valves, but improvements are needed to realize the full potential of coatings for above-deck service. Several recommendations are made regarding processes, materials, and research and development aimed at upgrading further the performance of these coatings.


Descriptors :   *SHIPS , *CORROSION , *COATINGS , *PROTECTIVE COATINGS , THERMAL PROPERTIES , NONDESTRUCTIVE TESTING , LIFE EXPECTANCY(SERVICE LIFE) , ALUMINUM ALLOYS , HAZARDS , METAL COATINGS , STEEL , COSTS , MAINTAINABILITY , CORROSION RESISTANCE , ALUMINUM , SAFETY , ZINC , PAINTS , LIFE CYCLES , SPRAYS


Subject Categories : Coatings, Colorants and Finishes
      Marine Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE