Hot Salt Stress Corrosion Studies.

Abstract

Effects of various flight-cycle simulations, maximum temperature, and microstructure were investigated using a concept analogous to a low-cycle fatigue (LCF) study. Isothermal stress cycling increased HSSC threshold stress over static loading. Simultaneous stress/temperature cycling increased threshold stress (and cyclic life) over isothermal stress cycling. A simple takeoff/shutdown dwell simulation produced the highest test results of the thermal-mechanical cycles investigated, with no significant effect from the addition of idle and cruise components. HSSC susceptibility increased with increasing maximum cyclic temperature. Alpha-beta processed material showed better resistance to HSSC than did beta material.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA068402

Entities

People

  • A. J. Luzietti
  • R. L. Fowler

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Chemistry
  • Compressor Components
  • Compressors
  • Creep
  • High Pressure
  • High Pressure Compressors
  • Materials
  • Materials Laboratories
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Stress Corrosion
  • Tensile Properties
  • Tensile Strength
  • Turbines

Readers

  • Materials Science and Engineering.
  • Powder metallurgy of Titanium alloys.
  • Structural Health Monitoring of Composite Structures.