The Electrodeposition of Low Contraction Chromium/Molybdenum Alloys Using Pulse-Reverse Plating.

Abstract

The use of modulated pulse periodic reverse (pulse-reverse) current to electrodeposit a low contraction (LC) chromium/molybdenum alloy has been evaluated. When using one full pulse-reverse plating cycle, the percent molybdenum in the deposit increased almost 400 percent (from 1 to 4 percent) as the current in the reverse cycle was increased from 0 to 10 amps. However, when the pulse reverse current was carried to six full plating cycles, the percent molybdenum in the deposit was not dependent upon the current and remained constant at about 1 percent. This is about the same percent molybdenum that could be expected in direct current-plated LC chromium/molybdenum alloy and about half the percent molybdenum that could be expected in an on/off pulse-plated LC chromium/molybdenum alloy. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA292727

Entities

People

  • Mark D. Miller
  • Stephen Langston

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

DTIC Thesaurus Topics

  • Alloys
  • Chromium
  • Coatings
  • Direct Current
  • Electrodeposition
  • Engineering
  • Materials
  • Materials Processing
  • Mechanical Properties
  • Metals
  • Military Research
  • Molybdenum
  • Molybdenum Alloys
  • Plating
  • Refractory Metals
  • Resistance
  • Thermal Resistance

Readers

  • Mathematics or Statistics
  • Surface Engineering/Surface Coating Technology.