Hydrogen embrittlement of nickel: The effect of hydrogen and sulfur cosegregation

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5366502

Lassila, D H; Birnbaum, H K ^[1]

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1. Univ. of Illinois, Urbana (USA)

The effect of cosegregation of hydrogen and sulfur on the fracture mode of hydrogen charged nickel has also been studied. In the hydrogen free specimens, sulfur segregation does not cause intergranular fracture. It is shown that trade amounts of hydrogen will cause the fracture mode of nickel with sulfur segregation at grain boundaries to change from ductile shear rupture to an intergranular fracture. The fracture mode dependence on hydrogen concentration with and without sulfur segregation at the grain boundaries suggests that sulfur enhances the segregation of hydrogen.

• OSTI ID: 5366502
• Report Number(s): CONF-840909--
• Journal Information: TMS (The Metallurgical Society) Paper Selection; (USA), Journal Name: TMS (The Metallurgical Society) Paper Selection; (USA) Vol. 56; ISSN 0197-1689; ISSN TMPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
CRYSTAL STRUCTURE
ELEMENTS
EMBRITTLEMENT
FRACTURE PROPERTIES
GRAIN BOUNDARIES
HYDROGEN
HYDROGEN EMBRITTLEMENT
KINETICS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
METALS
MICROSTRUCTURE
NICKEL
NONMETALS
REACTION KINETICS
SEGREGATION
SULFUR
TRANSITION ELEMENTS