Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (When Dero En 



REPORT DOCUMENTATION PAGE 



V REPORT NUN 



TN-1424 



2. GOVT ACCESSION NO 



DN487017 



3 RECIPIENT'S CAT ALOG NUMBEF 



4. Tn\.E (and Subtitle) 



INSPECTION OF OBJECTS RETRIEVED FROM 

 THE DEEP OCEAN - AUTEC ACOUSTIC ARRAY 



5. TYPE OF REPORT & PERIOD COVERED 



Not final; Feb 1973 - Oct 1973 



6. PERFORMING ORG. REPORT NUMBER 



AUTHORfsJ 



J. F. Jenkins 



CONTRACT OR GRANT 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



CIVIL ENGINEERING LABORATORY 



Naval Construction Battalion Center 

 Port Hueneme, California 93043 



O&M, N 

 42-016 



II. CONTROLLING OFFICE I 



Chesapeake Division, Naval Facilities Engineering 

 Command, Washington Navy Yard, Washington, 

 DC 20374 



12. REPORT DATE 



February 1976 



23 



3ER OF PAGES 



4, MONITORING AGENCY NAME a ADDRESSrif £ 



' Irom Co^t^olIir^(i Office) 



15. SECURITY CLASS, fo 



Unclassified 



15a. DECLASSIFICATION DOWNGRADING 

 SCHEDULE 



6. DISTRIBUTION ST ATEMEN J (of thi b- Report) 



Approved for public release; distribution unlimited. 



DISTRIBUTION STATEMENT (of I 



in BJock 20, if different from Report) 



18 SUPPLEMENTARY NOTES 



19. KEY WORDS (Continue on reverse side if necessary and identify by btoclr number; 



Corrosion, metals, alloys, seawater, wire rope, electromechanical cables, cable 

 terminations, underwater structures, steel, galvanized steel, aluminum alloys, 

 copper-nickel alloys, nickel-copper alloys, inspection techniques. 



20. ABSTRACT (Contin 



Information on the corrosion of materials exposed to marine environments must be 

 obtained if ocean structures are to be designed with predictable lifetimes. A large amount 

 of relevant information can be obtained at a relatively low cost by evaluating the condition 

 of objects retrieved from the sea. To optimize these evaluations, they must be performed 

 logically and uniformly. Development and application of guidelines for such evaluations 



continued 



DD 1 JAN 73 1473 EDITION OF I NOV 65 IS OBSOLETE 



MBL/WHOI 



Unclassified 



SECURITY CLASSIFICATION OF THIS PAGE (UTien Data Entered) 



D3D1 ODMDSm S 



