Laser Cladding of Ni, Nb, and Mg Alloys for Improved Environmental Resistance at High Temperature

Abstract

This report summarizes experimental and theoretical studies carried out during the period of November 1985 to October 1988 on laser surface modification of Nickel, Niobium, and Magnesium alloys for improved environmental resistance at high temperature. Major emphasis has been on Ni-Cr-Al-Hf system. Microstructural evolution and oxidation properties of Ni and Nb alloys were examined. For Mg alloys microstructural characterization and potentiodynamic corrosion testing were carried out. One-dimensional diffusion model for finite domain to examine the extended solid solubility in laser cladding was also developed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1989
Accession Number
ADA210134

Entities

People

  • A. Kar
  • C. Ribaudo
  • J. Mazumder
  • R. Lober
  • R. Subramanian
  • S. Sircar

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Corrosion Resistance
  • Crystal Structure
  • Electron Microscopy
  • Heat Energy
  • High Temperature
  • Lasers
  • Mass Spectrometry
  • Materials Processing
  • Oxidation Resistance
  • Phase Diagrams
  • Phase Transformations
  • Solid Solutions
  • Spectra
  • Spectrometry
  • Spectroscopy

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Directed Energy