Combined effect of stress state and grain size on hydrogen embrittlement of titanium. Technical report

Technical Report · Mon Jul 01 04:00:00 EDT 1985

OSTI ID:6309748

Gerard, D A; Koss, D A

The influence of grain size on the hydrogen embrittlement of titanium sheets is shown to depend on stress state. Results presented indicate that the deleterious effect of a large grain size on the susceptibility to hydrogen embrittlement is more severe in equibiaxial tension than in uniaxial tension. This effect may be understood in terms of the sensitivity of both void nucleation (due to hydride fracture) and void link-up (due to the combined effects of large grain/hydride fracture) and void link-up (due to the combined effects of large gain/hydride sizes) and the large multidirectional, normal stresses that develop during deformation of plastically anisotropic sheets in equibiaxial tension.

• Research Organization: Michigan Technological Univ., Houghton (USA). Dept. of Metallurgical Engineering
• OSTI ID: 6309748
• Report Number(s): AD-A-158923/3/XAB; TR-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
AMPLIFICATION
ANISOTROPY
CRYSTAL STRUCTURE
DEFORMATION
ELEMENTS
EMBRITTLEMENT
GAIN
GRAIN SIZE
HYDRIDES
HYDROGEN COMPOUNDS
HYDROGEN EMBRITTLEMENT
METALS
MICROSTRUCTURE
NUCLEATION
SENSITIVITY
SHEETS
SIZE
STRESSES
TITANIUM
TRANSITION ELEMENTS
VOIDS