Material Analysis of Austempered Ductile Iron

Abstract

A materials analysis was performed on a sample of austempered ductile iron (ADI). This material was supplied in the heat-treated condition by a commercial producer. ADI is being examined as a potential alternate material to be used in the manufacture of muzzle brakes and other candidate weapon components. The analysis included mechanical property determination, chemical composition determination, metallographic examination, and scanning electron microscopy. The mechanical properties obtained were compared to the requirements specified on the 155-mm M284 muzzle brake drawing and the military casting specification MIL-B-12253. Based on the analysis, the ADI material examined would not be suitable as an alternate material for the muzzle brake. Furthermore, the results of the evaluation suggest that the material may not have been property heat treated for this particular application.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1993
Accession Number
ADA261953

Entities

People

  • Kathryn E. Noll
  • Sandra O. Roy

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Advanced Electronics
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Chemical Analysis
  • Chemical Composition
  • Electron Microscopy
  • Heat Treatment
  • Iron
  • Materials
  • Mechanical Properties
  • Mechanics
  • Microscopy
  • Military Research
  • Muzzle Brakes
  • Scanning Electron Microscopy
  • Specifications
  • Standards
  • Toughness
  • Wear Resistance

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • ballistics.

Technology Areas

  • Microelectronics