Title | ||
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Carbide Formation in Refractory Mo 15 Nb 20 Re 15 Ta 30 W 20 Alloy under a Combined High-Pressure and High-Temperature Condition. |
Abstract | ||
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In this work, the formation of carbide with the concertation of carbon at 0.1 at.% in refractory high-entropy alloy (RHEA) Mo(15)Nb(20)Re(15)Ta(30)W(20)was studied under both ambient and high-pressure high-temperature conditions. The x-ray diffraction of dilute carbon (C)-doped RHEA under ambient pressure showed that the phases and lattice constant of RHEA were not influenced by the addition of 0.1 at.% C. In contrast, C-doped RHEA showed unexpected phase formation and transformation under combined high-pressure and high-temperature conditions by resistively employing the heated diamond anvil cell (DAC) technique. The new FCC_L1(2)phase appeared at 6 GPa and 809 degrees C and preserved the ambient temperature and pressure. High-pressure and high-temperature promoted the formation of carbides Ta3C and Nb3C, which are stable and may further improve the mechanical performance of the dilute C-doped alloy Mo15Nb20Re15Ta30W20. |
Year | DOI | Venue |
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2020 | 10.3390/e22070718 | ENTROPY |
Keywords | DocType | Volume |
high-entropy alloy,compression deformation,synchrotron x-ray diffraction,diamond anvil cell,high-pressure and high-temperature property | Journal | 22 |
Issue | ISSN | Citations |
7 | 1099-4300 | 0 |
PageRank | References | Authors |
0.34 | 0 | 7 |
Name | Order | Citations | PageRank |
---|---|---|---|
Congyan Zhang | 1 | 0 | 0.34 |
Uttam Bhandari | 2 | 0 | 0.34 |
Congyuan Zeng | 3 | 0 | 0.34 |
Huan Ding | 4 | 0 | 0.34 |
Shengmin Guo | 5 | 1 | 1.04 |
Jinyuan Yan | 6 | 1 | 0.69 |
Shizhong Yang | 7 | 73 | 8.40 |