STUDY OF A TITANIUM WIRE ROPE DEVELOPED FOR MARINE APPLICATIONS

The mechanical properties and fatigue performance of a titanium wire rope have been experimentally determined. The rope has a nominal diameter of 1/4-in. and is of 7 x 7 structural form. Other salient constructional details of the rope include the use of two titanium alloys and two wire lubricants. Furthermore, lay lengths of the rope and of individual strands were increased over those for similarly constructed steel ropes. The overall test program consisted of two major parts: static tensile tests and axial fatigue tests. For purposes of comparison, stainless-steel and galvanized-steel wire ropes of the same nominal diameter and 7 x 7 form were also subjected to these tests. Test results indicate that the strength-to-weight ratio and stretch characteristics of the titanium rope are superior to those of the steel ropes. However, the fatigue-life data suggest that it would fail as a part of a marine structure in a significantly shorter period of time than would either of the two less expensive steel ropes. (Modified author abstract)

• Corporate Authors:

  Naval Research Laboratory

  4555 Overlook Avenue, SW
  Washington, DC  United States  20375-5320
• Authors:
  • Milburn, D A
• Publication Date: 1973-11-2

Media Info

• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Fatigue (Mechanics); Fatigue tests; Titanium alloys; Wire rope
• Uncontrolled Terms: Fatigue life
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00052229
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NRL-7625 Final Rpt
• Files: TRIS
• Created Date: May 7 1974 12:00AM