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A Joining Process between Beryllium and Reduced-Activation Ferritic–Martensitic Steel by Plasma Sintering
| Content Provider | MDPI |
|---|---|
| Author | Kim, Jae-Hwan Hwang, Taehyun Nakamichi, Masaru |
| Copyright Year | 2021 |
| Description | To investigate the growth kinetics of the reaction layer and mechanical strength of joined materials, we joined beryllium and reduced-activation ferritic–martensitic steel (F82H) by plasma sintering under various conditions and characterized the joined region. Scanning electron microscopy revealed that the thickness of the reaction layer increased with an increase in the joining time and temperature. Line analyses and elemental mapping using an electron microprobe analyser showed that the reaction layer consists of Be–Fe intermetallic compounds, including $Be_{12}$Fe, $Be_{5}$Fe, and $Be_{2}$Fe, with small amounts of chromium and tungsten. Owing to the time and temperature dependence of the reaction-layer thickness, the layer growth of Be–Fe intermetallic compounds obeys the parabolic law, and the activation energy for the reaction-layer growth was 116.2 kJ/mol. The bonding strengths of the joined materials varied inversely with the thickness of the reaction layer. |
| Starting Page | 6348 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14216348 |
| Journal | Materials |
| Issue Number | 21 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-10-23 |
| Access Restriction | Open |
| Subject Keyword | Materials Beryllium F82h Plasma Sintering Intermetallic Compound Bonding Strength |
| Content Type | Text |
| Resource Type | Article |
