Accession Number : AD0467088

Title :   FRACTURE BEHAVIOR OF TITANIUM IN THE MARINE ENVIRONMENT.

Descriptive Note : Phase rept.,

Corporate Author : NAVY MARINE ENGINEERING LAB ANNAPOLIS MD

Personal Author(s) : Lane, I. R., Jr. ; Cavallaro, J. L. ; Morton, A. G. S.

Report Date : JUL 1965

Pagination or Media Count : 1

Abstract : This investigation of the fracture behavior of titanium in the marine environment evaluated a spectrum of titanium alloys for loss of fracture resistance in seawater. A comparison of the wet-stress-cracking behavior was made with metallurgical variables. Sensitivity was found to be related to the titanium-aluminum embrittling reaction and was dependent on aluminum content, isomorphous beta stabilizer content, and heat treatment. Control of the factors leading to the titanium-aluminum reaction appears to provide a means of eliminating the problem or reducing it to the extent that alloys will be safe to use. A program to accomplish such control is outlined. (Author)

Descriptors :   (*TITANIUM ALLOYS, FRACTOGRAPHY), (*MARINE ENGINEERING, TITANIUM ALLOYS), SEA WATER, FRACTURE(MECHANICS), BRITTLENESS, ALUMINUM, TOUGHNESS, HEAT TREATMENT, NUCLEATION, STRAIN(MECHANICS), CORROSION, STRESSES, SHIP HULLS, DIVING, WELDS, PRESSURE VESSELS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE