The effect of stress state on the hydrogen embrittlement of nickel

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Acta Metall.; (United States)

DOI:https://doi.org/10.1016/0001-6160(86)90231-2· OSTI ID:7009895

Kampe, S L; Koss, D A

The ductility of nickel sheet subjected to in situ cathodic hydrogen charging has been investigated over a range of multiaxial stress states including uniaxial, plane-strain, and equibiaxial tension. The extent of ductility loss due to hydrogen increases as the stress state tends from uniaxial to equibiaxial tension. Hydrogen embrittlement is characterized by intergranular fracture with failure due to microcrack formation, microcrack link-up, and macrocrack growth. The increased susceptibility to intergranular embrittlement with increasing biaxiality is a consequence of an enhanced rate of the link-up of strain-induced intergranular microcracks.

• Research Organization: Dept. of Metallurgical Engineering, Michigan Technological Univ., Houghton, MI (US)
• OSTI ID: 7009895
• Journal Information: Acta Metall.; (United States), Journal Name: Acta Metall.; (United States) Vol. 34:1; ISSN AMETA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103* -- Metals & Alloys-- Mechanical Properties
CRACK PROPAGATION
DUCTILITY
ELEMENTS
EMBRITTLEMENT
FRACTURE MECHANICS
HYDROGEN EMBRITTLEMENT
MECHANICAL PROPERTIES
MECHANICS
METALS
NICKEL
SHEETS
STRAINS
STRESS ANALYSIS
STRUCTURAL CHEMICAL ANALYSIS
TENSILE PROPERTIES
TRANSITION ELEMENTS