Stress, hydrogen segregation, and fracture in. cap alpha. -. beta. titanium alloys

Journal Article · Sun Aug 01 04:00:00 EDT 1976 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02656608· OSTI ID:7234809

Margolin, H

Strain embrittlement in Ti base alloys during tensile testing was investigated. Results show that in an ..cap alpha..-..beta.. titanium alloy the local activity of H in alpha phase (..cap alpha../sub H//sup ..cap alpha..) increases and activity of H in beta phase (..cap alpha../sub H//sup ..beta..) decreases as the equiaxed ..cap alpha.. particle size decreases at constant volume fraction of phases. Thus with decreasing particle size there would be a tendency for H to move from ..cap alpha.. to ..beta.., decreasing the H content of ..cap alpha... Also whether H tended to move from ..beta.. to ..cap alpha.. or from ..cap alpha.. interiors to the ..cap alpha..-..beta.. interface this tendency would be reduced by surface tension effects, making the alloy less susceptible to embrittlement. (JRD)

• Research Organization: Polytechnic Inst. of New York, Brooklyn
• OSTI ID: 7234809
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 7:8; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
ALUMINIUM ALLOYS
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
ELEMENTS
EMBRITTLEMENT
FLUIDS
FRACTURE PROPERTIES
HYDRIDATION
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NONMETALS
SEGREGATION
STRESSES
TITANIUM ALLOYS
TITANIUM BASE ALLOYS
VANADIUM ALLOYS