Properties of Composite Electrodeposits

Abstract

The corrosion and tribological properties of multilayer, electrodeposited chromium composites were determined. The composites consisted of 250 nm-thick layers of crystalline and amorphous chromium, chromium and its hydride, and alloys of different molybdenum or carbon contents. The properties were compared with those of single-layer deposits of the same materials. The effect of sandwiching a layer of the intermetallic phase, NiSn on the mechanical and corrosion properties of electrodeposited tin and nickel was also investigated. It was found that multilayer chromium deposits of different molybdenum contents exhibited superior corrosion resistance in sulfuric acid. Multilayer deposits of crystalline and amorphous chromium and of different carbon contents also had better corrosion resistance than the single-layer ones especially in hydrochloric acid. (JS)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1990
Accession Number
ADA228079

Entities

People

  • C. Sheu
  • R. Weil

Organizations

  • Stevens Institute of Technology

Tags

Communities of Interest

  • Counter IED
  • Human Systems

DTIC Thesaurus Topics

  • Acids
  • Alloys
  • Body Weight
  • Classification
  • Corrosion Resistance
  • Crystal Structure
  • Current Density
  • Ductility
  • Electron Microscopes
  • Electron Microscopy
  • Formic Acid
  • Hydrochloric Acid
  • Mechanical Properties
  • Microscopy
  • Security
  • Tensile Strength
  • Tensile Stress

Fields of Study

  • Materials science

Readers

  • Nanofabrication and Microfabrication.
  • Surface Engineering/Surface Coating Technology.