Abstract
It is well known that B2 type Fe-Al intermetallic compound alloy possibly includes more than two types of vacancies basically, that is Fe-vacancy and Al-vacancy. Although MeV ordered electron irradiation produces vacancies and interstitials, the threshold energy of displacement for each elemental atom in intermetallic alloys is not necessarily same. In this study, we performed positron annihilation lifetime and Doppler broadening measurements for different energy of electron irradiated B2 ordered Fe50%Al alloy. Different values of positron annihilation lifetime for 2 and 9 MeV electron irradiation were measured. Also, the Doppler broadening S and W parameters showed different changing trend for different energy of electron irradiation. These results suggest that selective atomic displacement takes place in Fe-Al ordered alloy by electron irradiation with different energies.
| Original language | English |
|---|---|
| Title of host publication | Positron Annihilation - ICPA-17 |
| Editors | C.Q. He , Y.C. Wu , N. Qi , Z.Q. Chen |
| Publisher | Trans Tech Publications Ltd |
| Pages | 126-129 |
| Number of pages | 4 |
| Volume | 373 DDF |
| ISBN (Print) | 9783038356059 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | 17th International Conference onPositron Annihilation, ICPA-17 - Wuhan, China Duration: Sept 20 2016 → Sept 25 2016 |
Other
| Other | 17th International Conference onPositron Annihilation, ICPA-17 |
|---|---|
| Country/Territory | China |
| City | Wuhan |
| Period | 9/20/16 → 9/25/16 |
All Science Journal Classification (ASJC) codes
- Radiation
- Materials Science(all)
- Condensed Matter Physics