| Autor: |
Zhiyuan, Liang, Tingshan, Guo, Qinxin, Zhao |
| Předmět: |
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| Zdroj: |
JOM: The Journal of The Minerals, Metals & Materials Society (TMS); Dec2021, Vol. 73 Issue 12, p3959-3964, 6p |
| Abstrakt: |
Corrosion behavior of titanium alloy Ti6Al4V in supercritical carbon dioxide at 600°C and 20 MPa for 1000 h was investigated. Several characterization technologies, including XRD, EDS, SEM, and GDOES, were employed to study the phase, distribution, and composition of the corrosion products formed on alloy Ti6Al4V. The results showed that the weight gain of alloy Ti6Al4V was much lower than that of 9Cr and 12Cr heat-resisting steels. The corrosion kinetics of alloy Ti6Al4V followed a parabolic corrosion law. Amorphous C was found at the gas/solid interface of alloy Ti6Al4V. The corrosion products on Ti6Al4V were mainly composed of an outer layer of deposited C, Al2O3, and TiO2 and an inner oxygen-affected zone with some TiC in the substrate. The evolution of the corrosion products on alloy Ti6Al4V in supercritical carbon dioxide has been proposed. Alloy Ti6Al4V will be a promising structural material for turbine blades in the future supercritical carbon dioxide system. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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