Preliminary Study into Shell Mold Casting of Nominal 60-Nitinol Alloy

Abstract

The present study was initiated to determine the feasibility of shell mold casting nominal 60-Nitinol into suitable EOD (Explosive Ordnance Disposal) tools. Pr Primary emphasis was directed to alloy-mold interaction, effects of graphite mold coating, shrinkage and porosity problems, alloy fluidity, surface finish and definition and property response of cast alloy. Based upon the results, 60-Nitinol appears quite suited to shell molding and a casting approach, provided the alloy melting and casting are conducted in a vacuum or controlled inert atmosphere. The major area of possible future concern lies in the casting porosity associated with the relatively large liquid-to-solid shrinkage of nominal 60-Nitinol.

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Document Details

Document Type
Technical Report
Publication Date
Jul 12, 1973
Accession Number
AD0765693

Entities

People

  • Ernest F. Heintzelman
  • Richard E. Jones
  • Richard H. Lundsten
  • William J. Buehler

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Accuracy
  • Casting (Fabrication)
  • Castings
  • Chemistry
  • Fabrication
  • Fluids
  • Graphitic Materials
  • Magnetic Properties
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Munitions
  • Ordnance Laboratories
  • Shell Mold Casting

Fields of Study

  • Materials science

Readers

  • Marine Propulsion Engineering and Naval Architecture
  • Metallurgy
  • Theoretical Analysis.