Application of a Rapid Quench Thermomagnetic Analyzer to Austempered Ductile Iron.

Abstract

A thermormagnetic analyzer was fabricated to provide in-situ monitoring of isothermal decompositions of austenite in steels and related alloys. The analyzer provides a convenient and rapid means for establishing time-temperature-transformation characteristics of a ferrous alloy by cycling a given specimen through a series of thermal treatments and monitoring the transformations magnetically. The present report describes the apparatus and gives results on the transformation characteristics of austempered ductile iron (ADI). This analyzer was also used to investigate alternative processing procedures; the results indicate that an improved heat treatment is available for large ADI components. jg

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1994
Accession Number
ADA292261

Entities

People

  • M. D. Witherell
  • Paul J. Cote
  • T. Hickey

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Advanced Electronics
  • Cyber
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Alloys
  • Analyzers
  • Austenite
  • Decomposition
  • Diameters
  • Engineering
  • Heat Treatment
  • Iron
  • Iron Alloys
  • Low Temperature
  • Magnetic Fields
  • Materials
  • Measurement
  • Mechanical Properties
  • Military Research
  • Standards

Readers

  • Aerospace Test and Evaluation
  • Powder metallurgy of Titanium alloys.