Survey of Nickel-Aluminium-Bronze Casting Alloys on Marine Applications,

Abstract

The structure and corrosion performance of nickel-aluminium bronze (NAB)--covered by naval specification DGS-8520 and DGS-348--have been investigated. No evidence was found to suggest that there would be any significant difference in corrosion performance between alloys meeting the two specifications. Early corrosion problems associated with the weld repair areas of castings have been overcome largely by using improved foundry and welding techniques followed by a heat-treatment procedure. Both crevice and pit corrosion still occur in operating systems. However, recent reports indicate that with improved NAB foundry practice this is less widespread, with penetration often being confined to the surface grains. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1981
Accession Number
ADA105263

Entities

People

  • G. M. Weston

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computer Programs
  • Corrosion
  • Corrosion Resistance
  • Electron Microscopes
  • Elements
  • Heat Treatment
  • High Temperature
  • Materials
  • Materials Testing
  • Mechanical Properties
  • Metals
  • Operating Systems
  • Phase Diagrams
  • Phase Transformations
  • Plastic Explosives
  • Standards
  • Wear Resistance

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy
  • Systems Analysis and Design