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|Author(s):||Rick L. Paul; Richard M. Lindstrom;|
|Title:||Preparation and Certification of Hydrogen in Titanium Alloy Standard Reference Materials|
|Published:||August 04, 2012|
|Abstract:||A series of three Hydrogen in Titanium Alloy Standard Reference Materials (SRMs 2452, 2453, and 2454) were prepared with hydrogen mass fractions bracketing the hydrogen specification limit of 125 mg/kg. Commercial titanium alloy Ti6Al4V (6 % aluminum, 4 % vanadium) was heated under vacuum in a furnace to remove native hydrogen, then doped with a measured quantity of hydrogen. Prompt gamma-ray activation analysis was used to determine hydrogen in the degassed material and finished SRMs. A combination of preparation data and PGAA measurement was used to certify the hydrogen mass fraction of each. The certified hydrogen mass fractions are 62.5 mg/kg ± 1.6 mg/kg for SRM 2452, 114 mg/kg ± 5 mg/kg for SRM 2453, and 211 mg/kg ± 4 mg/kg for SRM 2454.|
|Citation:||Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science|
|Pages:||pp. 4888 - 4895|
|Keywords:||titanium alloys, hydrogen, standard reference materials, activation analysis, neutrons, prompt gamma rays|
|Research Areas:||Neutron Research, Standards, Materials Science, Chemistry, Measurements|
|PDF version:||Click here to retrieve PDF version of paper (199KB)|