PHASE COMPATIBILITY STUDIES ON NICKEL-CHROMIUM-SILICON-CARBON BASE ALLOYS. VOLUME I. CONSTITUTION OF THE BINARY CHROMIUM-SILICON SYSTEM.

Abstract

Phase relationships in the binary system Cr-Si have been established based on the melting point, X-ray, metallographic, and DTA studies. The three intermediate phases Cr3Si, Cr5Si3, and CrSi2 melt congruently at 1770 plus or minus 10 degrees, 1680 plus or minus 20 degrees, and 1490 plus or minus 20C respectively, while the fourth intermediate phase, CrSi, melts peritectically at 1413 plus or minus 5C to Cr5Si3 and a melt containing 51 atomic % Si. Based mainly on DTA and metallographic results, the second intermediate phase Cr5Si3 was found to undergo a phase transformation at 1505 plus or minus 20C. The high-temperature form of this phase was never retained by various quenching techniques used in the present study. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1968
Accession Number
AD0835244

Entities

People

  • Y. A. Chang

Organizations

  • Aerojet Rocketdyne Holdings

Tags

DTIC Thesaurus Topics

  • Chromium
  • High Temperature
  • Isothermal Processes
  • Melting
  • Melting Point
  • Phase Transformations
  • Quenching
  • Thermodynamic Processes
  • Transition Temperature
  • X Rays

Readers

  • Materials Science and Engineering.
  • Mathematics or Statistics
  • Powder metallurgy of Titanium alloys.