A Research Investigation of Possibilities for Obtaining Hot-Hard Electrodeposited Chromium or Chromium-Base Alloys for Cannon

Abstract

Experiments were continued on the application of 94% chromium - 6% iron alloy plate to the bore surfaces of cannon. An extended series of tests was unsuccessful in pointing a way for plating full-length gun tubes with moving anodes. Good plate was obtained only at the initial position of the anode. Areas plated after the anode travel began received a poorly adherent plate. The plating solution etched these areas before plating began, and the effect of the etching was to prevent plate adherence. Several erosion-gage weapon inserts were plated using full-length stationary anodes. Firing tests showed these plates to lack sufficient adherence for erosion resistance. However, the full-length anode system offered advantages over a moving anode. Plating tests were begun with four-foot lengths of simulated smooth-bore 40-mm gun tubes. These tests had not reached a conclusive stage when the contract period ended. Additional keywords: U/A reports.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1951
Accession Number
ADA954162

Entities

People

  • C. A. Snavely
  • C. L. Faust
  • J. E. Bride

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Acids
  • Adhesion
  • Alloys
  • Chemistry
  • Chromium
  • Cold Water
  • Contracts
  • Current Density
  • Electrodeposition
  • Erosion Resistance
  • Films
  • Hydrogen
  • Iron Alloys
  • Materials
  • Rocket Oxidizers
  • Tin Alloys
  • Weapons

Readers

  • Surface Engineering/Surface Coating Technology.
  • ballistics.