| 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 |
| Volume: |
43A |
| Issue: |
12 |
| 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 (195KB) |
