INFLUENCE OF MOLD WALL THICKNESS ON THE QUALITY OF INGOTS CAST FROM NICKEL-BASED ALLOYS

Abstract

A detailed investigation of the quality of 500 kg ingots cast from a heat-resistant, high-alloy Ni alloy established that there was virtually no liquation of elements in the body of the ingot and that the density of the metal, with the exception of defect zones, was 8.58 g/cc, uniformly. A large number of internal longitudinal and transverse cracks located along the grain boundaries were discovered when the macrostructure in the axial zone of the ingot was studied. A study was made of the causes for the appearance of internal cracks in ingots cast from a Ni alloy and methods for preventing these cracks were investigated. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 08, 1962
Accession Number
AD0292612

Entities

People

  • S.a. Iodkovskiy
  • V.k. Novitskiy

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Crystal Structure
  • Geometry
  • Grain Boundaries
  • Grain Structures (Metallurgy)
  • Mathematics
  • Thickness
  • Transverse

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.
  • Structural Health Monitoring of Composite Structures.