Advanced Concepts in Structural Materials and Testing. Part II. Development of a Modulated-Microstructure Heat Treatable Steel

Abstract

The objective of the modulated microstructure work is to develop an alloy complex which combines high strength and significant fracture toughness. The basic concept is to alternate layers of high-strength martensite with tough and softer austenite in a complex which can be hardened to strength of 400 Ksi (2.8 GN/sq m) and softened for fabrication by conventional heat treatment. In the experimental program a technique of fabricating the alloy complex has been developed and complexes comprised of a trial pair of alloy layers have been produced, tested, and evaluated. On the basis of the resulting mechanical properties and the observed fracture path, a tentative rational method of optimizing the properties of the alloy complex has been formulated.

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Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1974
Accession Number
AD0782350

Entities

People

  • Peter G. Winchell
  • Y. C. Chen

Organizations

  • Purdue University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Aluminum Oxides
  • Fabrication
  • Hardness
  • Heat Treatment
  • Manufacturing
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Stainless Steel
  • Stress Strain Relations
  • Stresses
  • Tensile Properties
  • Tensile Stress
  • Test Methods
  • Tool Steel

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.
  • Systems Analysis and Design