Fatigue-Fracture Properties of a Semi-Austenitic Precipitation Hardening Stainless Steel

Abstract

Fatigue and fracture toughness properties were determined for STA 60 precipitation hardening stainless steel used in the structure of the 105-mm Light Gun. Fatigue properties (S-N crack for initiation and da/dN versus crack growth rate) and fracture toughness (JIc) were measured on both parent sheet and welded joints for a range of heat treatments including fully re-heat treated and peak aged (450C), overaged as in production (530C), and as-welded joints not re-heat treated. Keywords: Stainless steels; Precipitation hardening steels; 105-mm Light gun; Fracture toughness; Crack propagation; Fatigue; Gun carriages.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1988
Accession Number
ADA198751

Entities

People

  • R. Farrara

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Cyber
  • Weapons Technologies

DTIC Thesaurus Topics

  • Crack Propagation
  • Dispersion Hardening
  • Engineering
  • Fatigue Life
  • Heat Treatment
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Metals
  • Military Research
  • Security
  • Surface Roughness
  • Toughness
  • Weld Metal
  • Welded Joints

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy