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| Content Provider | Springer Nature Link |
|---|---|
| Author | Romav, E. P. Kazantseva, N. V. Stepava, N. N. Demakov, S. L. Davydov, D. I. Shishkin, D. A. |
| Copyright Year | 2017 |
| Abstract | The structures and phase compositions of a series of Co–9 at % Al–x at % W alloys (where x = 4.6, 6.8, 8.5, 10.0, 12.6) have been studied. All of them are dominated by the structure γ + γ′, with the content of other phases (the μ phase and the phase D019 based on Co3W) being insignificant. With increasing tungsten content of the alloy (to 10 at % W), the volume fraction of the γ′ phase increases, and so does its degree of long-range order. The alloy that is optimal in structure and mechanical properties has the composition Co–8.2 at % Al–8.5 at % W. The dissolution range of the γ′ phase was determined as 920–1054°C. Young’s moduli of cobalt alloys exceed E of commercial nickel-based superalloys. The samples of the studied alloys are in the ferromagnetic state with a Curie temperature of 870°C. With increasing tungsten content of the alloy, its saturation magnetization decreases and the coercive force increases. The coercive force is minimal in an as-cast sample and increases as it is subjected to deformation or heat treatment. |
| Starting Page | 88 |
| Ending Page | 91 |
| Page Count | 4 |
| File Format | |
| ISSN | 00125008 |
| Journal | Doklady Chemistry |
| Volume Number | 473 |
| Issue Number | 2 |
| e-ISSN | 16083113 |
| Language | English |
| Publisher | Pleiades Publishing |
| Publisher Date | 2017-05-17 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chemistry/Food Science Industrial Chemistry/Chemical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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