SEMIAUSTENITIC PRECIPITATION-HARDENABLE STAINLESS STEELS

Abstract

The semiaustenitic precipitation-hardenable stainless steels remain austenitic on cooling rom a solution heat treatment at about 1950 F. In this form they are readily fabricable. Subsequent treatment at about 1400 or at about 1725 F depletes the austenite of Cr and C to the extent that martensite forms on cooling to room temperature or -100 F, respectively. Final hardening is effected by tempering, or aging, at 750 to 1100 F. The semiaustenitic precipitation-hardenable stainless steels may be obtained as transformed at the mill by cold rolling. In this condition they lack the good formability of solution-heat-treated material. However, the fabricator need only temper them to obtain very high strengths. These steels have a combination of good formability, high strength, and excellent corrosion resistance that is not easily matched by other materials.

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Document Details

Document Type
Technical Report
Publication Date
Dec 06, 1961
Accession Number
AD0274805

Entities

People

  • D. C. Ludwigson

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Alloys
  • Chemistry
  • Corrosion Resistance
  • Crystal Structure
  • Fabrication
  • Heat Treatment
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Physical Properties
  • Plastic Explosives
  • Solid Solutions
  • Tensile Properties
  • Tensile Strength
  • United States

Fields of Study

  • Materials science

Readers

  • Metallurgy