Stress State and Hydrogen-Related Fracture.

Abstract

The influence of externally imposed stress state on the hydrogen-assisted fracture of metals is reviewed. Independent of any transport process which may result in hydrogen accumulation, the effects of stress state are to accelerate the hydrogen-related fracture processes with increasing triaxiality of stress state. The magnitude of the intrinsic sensitivity of hydrogen embrittlement to stress state effect depends on the mechanism of embrittlement. The behavior of selected hydride as well as non-hydride forming alloy systems is reviewed. Keywords: Stress states; Hydrogen embrittlement; Fracture mechanisms; Titanium alloys; Zircaloy-Z; Steels; Nickel alloys; Hydride forming alloys.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1986
Accession Number
ADA172488

Entities

People

  • Donald A. Koss
  • Fan Yunchang

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Boundaries
  • Carbon Steels
  • Chemical Compounds
  • Chemistry
  • Cracks
  • Grain Boundaries
  • Hydrogen Embrittlement
  • Materials
  • Materials Science
  • Orientation (Direction)
  • Solid Solutions
  • Steel
  • Structural Components
  • Tensile Stress
  • Titanium
  • Transitions

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.