FATIGUE CRACK PROPAGATION IN A 5456-H117 ALUMINUM ALLOY IN AIR AND SEA WATER

Fatigue data on a 5456-H117 aluminum alloy have been obtained in air and sea water by fracture mechanics methods. It is found that the presence of sea water increases the crack growth rates and lowers the threshold stress intensity. The data for five stress ratios are correlated with two empirical equations. The effect of sea water on fatigue cracking is also examined by electron fractographs. (Author)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/NSRDC28826
• Corporate Authors:

  Naval Ship Research and Development Center

  Bethesda, MD  United States  20034
• Authors:
  • Chu, H P
• Publication Date: 1973-10

Media Info

• Pagination: 28 p.

Subject/Index Terms

• TRT Terms: Aluminum alloys; Corrosion; Cracking; Fatigue (Mechanics); Fatigue cracking; Fracture mechanics; Hulls; Seawater; Stress corrosion; Stress cracking; Stresses
• Uncontrolled Terms: Crack propagation; Ship hulls
• Old TRIS Terms: Corrosion cracking; Corrosion fatigue
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00051757
• Record Type: Publication
• Source Agency: National Technical Information Service
• ISBN: NSRDC-28-826
• Report/Paper Numbers: NSRDC-4169
• Files: TRIS
• Created Date: Mar 25 1974 12:00AM