Influence of Microstructural and Load Wave Form Control on Fatigue Crack Growth behavior of Precipitation Hardening Stainless Steels

Abstract

The scientific hypothesis of this work is that microstructure when acted upon by load and environment determines the fatigue-crack growth rates or life of a component. The experimental approach varied the heat treatment of two precipitation hardening martensitic alloys, 17-4 PH and 15-5 PH. Fatigue-crack growth data was correlated between materials cycled under wave forms of 10 Hz sine frequency and trapezoidal one minute hold-time for different stress range ratios and environments.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1976
Accession Number
ADA036275

Entities

People

  • Kevin R. Kondas

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemistry
  • Civil Engineering
  • Crystal Structure
  • Elastic Properties
  • Fracture (Mechanics)
  • Geometry
  • Materials
  • Materials Engineering
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Regression Analysis
  • Structural Components
  • Test And Evaluation

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.