CORROSION FATIGUE OF CAST PROPELLER ALLOYS IN FLOWING SEAWATER

The corrosion fatigue results of bronze alloys-(1) manganese, ABS Type 2, (2) nickel-aluminum, ABS Type 4, and (3) manganese-nickel-aluminum, ABS Type 5 are presented. Some results on CA-6NM stainless steel are also given. The large Krause type plate-bending specimens are from large castings to simulate those from ship propellers. Fatigue experiments were carried out for various mean and alternating stress levels at 3.33 HZ. Stress versus number of cycles to failure (S-N) between 1,000,000 and 10 to the 8th power cycles are given for the three bronzes, which includes the effect of mean stress levels. The mean stress effects could be well accounted for by the use of the Smith stress-strain parameter. Results are discussed in terms of alloy and published information. Application of the results to design is also addressed.

• Corporate Authors:

  Battelle Columbus Laboratories

  505 King Avenue
  Columbus, OH  United States  43201
• Authors:
  • Jaske, C E
  • Utah, D A
  • Boyd, W K
• Publication Date: 1977-7

Media Info

• Pagination: 96 p.

Subject/Index Terms

• TRT Terms: Alloys; Aluminum alloys; Corrosion; Fatigue (Mechanics); Fatigue tests; Nickel alloys; Propellers; Shipbuilding materials; Stainless steel; Structural analysis
• Old TRIS Terms: Alloy corrosion behavior; Corrosion fatigue; Propeller corrosion; Propeller materials
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00179651
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: MA-RD-920-77085-A Final Rpt.
• Contract Numbers: MA-3-36208
• Files: TRIS
• Created Date: Aug 27 1978 12:00AM