Abstract
As part of the assessment program for container materials for the long-term disposal of nuclear fuel waste, a test involving slow tensile straining at 10{sup -5} mm/s has been developed to study the effect of hydrogen on the fracture behaviour of titanium. Compact tension specimens of Grade-2 and Grade-12 material have been precracked in fatigue before charging with hydrogen at various concentrations up to 3000 wppm and then straining to failure. At low hydrogen concentrations, propagation of a slow crack may be followed at higher stress intensities by fast brittle failure, whereas at high concentrations the majority of materials suffer only fast brittle failure at stress intensity factors that decrease with increasing hydrogen content. The resistance of both Grade-2 and Grade-12 titanium to embrittlement by hydrogen is more dependent upon microstructure, and particularly the distribution of {beta}-phase, than upon the concentration of basal poles lying perpendicular to the principal fracture plane.
Citation Formats
Clarke, C F, Hardie, D, and Ikeda, B M.
Assessment of materials for containment of nuclear fuel waste. Environment-sensitive fracture of titanium.
Canada: N. p.,
1992.
Web.
Clarke, C F, Hardie, D, & Ikeda, B M.
Assessment of materials for containment of nuclear fuel waste. Environment-sensitive fracture of titanium.
Canada.
Clarke, C F, Hardie, D, and Ikeda, B M.
1992.
"Assessment of materials for containment of nuclear fuel waste. Environment-sensitive fracture of titanium."
Canada.
@misc{etde_10119203,
title = {Assessment of materials for containment of nuclear fuel waste. Environment-sensitive fracture of titanium}
author = {Clarke, C F, Hardie, D, and Ikeda, B M}
abstractNote = {As part of the assessment program for container materials for the long-term disposal of nuclear fuel waste, a test involving slow tensile straining at 10{sup -5} mm/s has been developed to study the effect of hydrogen on the fracture behaviour of titanium. Compact tension specimens of Grade-2 and Grade-12 material have been precracked in fatigue before charging with hydrogen at various concentrations up to 3000 wppm and then straining to failure. At low hydrogen concentrations, propagation of a slow crack may be followed at higher stress intensities by fast brittle failure, whereas at high concentrations the majority of materials suffer only fast brittle failure at stress intensity factors that decrease with increasing hydrogen content. The resistance of both Grade-2 and Grade-12 titanium to embrittlement by hydrogen is more dependent upon microstructure, and particularly the distribution of {beta}-phase, than upon the concentration of basal poles lying perpendicular to the principal fracture plane.}
place = {Canada}
year = {1992}
month = {Aug}
}
title = {Assessment of materials for containment of nuclear fuel waste. Environment-sensitive fracture of titanium}
author = {Clarke, C F, Hardie, D, and Ikeda, B M}
abstractNote = {As part of the assessment program for container materials for the long-term disposal of nuclear fuel waste, a test involving slow tensile straining at 10{sup -5} mm/s has been developed to study the effect of hydrogen on the fracture behaviour of titanium. Compact tension specimens of Grade-2 and Grade-12 material have been precracked in fatigue before charging with hydrogen at various concentrations up to 3000 wppm and then straining to failure. At low hydrogen concentrations, propagation of a slow crack may be followed at higher stress intensities by fast brittle failure, whereas at high concentrations the majority of materials suffer only fast brittle failure at stress intensity factors that decrease with increasing hydrogen content. The resistance of both Grade-2 and Grade-12 titanium to embrittlement by hydrogen is more dependent upon microstructure, and particularly the distribution of {beta}-phase, than upon the concentration of basal poles lying perpendicular to the principal fracture plane.}
place = {Canada}
year = {1992}
month = {Aug}
}