CATALOG INFORMATION ON THE PERFORMANCE OF ALUMINUM IN SEA WATER | Zendy

RH. Wagner and RA. Bonewitz | Zendy

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CATALOG INFORMATION ON THE PERFORMANCE OF ALUMINUM IN SEA WATER

Author(s) -

RH. Wagner and RA. Bonewitz

Publication year - 1978

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/1069242

Subject(s) - ocean thermal energy conversion , aluminium , crevice corrosion , alloy , fouling , environmental science , marine engineering , metallurgy , seawater , materials science , computer science , engineering , oceanography , geology , chemistry , biochemistry , membrane

To help evaluate aluminum alloys for OTEC heat exchanger tubes data on the performance of aluminum in surface and deep sea water has been assembled and computer cataloged. Pitting and crevice corrosion proved to be the types of attack that predominated. The cataloged data are the results of many static tests conducted under natural conditions of marine fouling, hence, they must be used carefully in qualifying aluminum for OTEC purposes. These data can serve the OTEC program best as a basis for selecting aluminum alloys that appear promising as candidates for further evaluation. The aluminum alloys 5052 and Alclad {7072) 3003 fall into this category. Available service histories also proved inadequate for qualifying aluminum alloys for the OTEC application, but they do support the selection of Alclad (7072) 3003 as a tubing alloy worthy of further consideration. Performance data covering areas of investigation peculiar to OTEC power plants is needed to permit a firm decision for or against aluminum alloy tubes

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