The rudders of Royal Navy ships are coated with an epoxide formulation to reduce the damage caused by corrosion and cavitation from the propellers. This coating fails in a brittle manner and it was thought that compositions having elastomeric properties at the high strain rates involved should yield more successful coatings. This study describes work which has been undertaken to relate the rate of attack on rudders to that in a cavitation tunnel, the effects of thickness upon erosion rate, the cavitation resistance of compounds having varying glass transition temperatures, and the optimization of a polyurethane elastomer which has a tunnel performance at least 2000 times better than the epoxide formulation.

Media Info

  • Pagination: p. 75.1

Subject/Index Terms

Filing Info

  • Accession Number: 00324744
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM