EFFECTS OF CHEMICAL COMPOSITION AND HEAT TREATMENT ON THE SEA WATER CORROSION RESISTANCE OF CAST MODIFIED NICKEL-ALUMINUM BRONZE

Abstract

Flowing sea water corrosion tests were conducted on four cast modified nickel-aluminum bronzes in order to determine the effects of variation in alloy composition and heat treatment on pitting corrosion tendencies. It was found that the aluminum and iron contents controlled the pitting corrosion resistance of these alloys. A proper balance of the major alloying elements appeared necessary to insure adequate corrosion resistance. Heat treatment at 1300 F and 1400 F improved the overall corrosion resistance over that of as-cast alloys. In addition, it was observed that slow cooled cast material displayed better as-cast corrosion resistance that fast cooled material.

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Document Details

Document Type
Technical Report
Publication Date
Aug 21, 1967
Accession Number
AD0820378

Entities

People

  • Charles A. Zanis
  • Joseph R. Crisci
  • Michael L. Foster

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Beta Testing
  • Body Weight
  • Casting Alloys
  • Castings
  • Chemical Analysis
  • Chemical Composition
  • Corrosion Resistance
  • Heat Treatment
  • Materials
  • Metals
  • Sea Water
  • Sea Water Corrosion
  • Tensile Properties
  • Tensile Strength
  • Tensile Testing
  • Test Methods
  • Water

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.