The Oxidation Resistance of Nb-Si-Based Alloys at Intermediate and High Temperatures
| Autor: | Jianyong Yang, Kaiyong Jiang, Xinghan Zhu, Guanqun Zhuo, Linfen Su |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
nb-si-based alloy
Materials science oxidation Alloy microstructure 02 engineering and technology engineering.material 01 natural sciences lcsh:Technology Article 0103 physical sciences General Materials Science lcsh:Microscopy Oxidation resistance lcsh:QC120-168.85 010302 applied physics lcsh:QH201-278.5 lcsh:T 021001 nanoscience & nanotechnology Microstructure Chemical engineering lcsh:TA1-2040 engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) Layer (electronics) lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 13, Iss 5, p 1229 (2020) Materials Volume 13 Issue 5 |
| ISSN: | 1996-1944 |
| Popis: | The oxidation behavior of three Nb-Si-based alloys were evaluated at intermediate (800 ° C) and high (1250 ° C) temperatures for 100 h in air. At 800 ° C, the Nb-24Ti-15Si-13Cr-2Al-2Hf (at. %) alloy suffered from catastrophic pest oxidation. This pest phenomenon was suppressed by the addition of Sn. However, Ta addition protected the Nb-Si-based alloys from pest oxidation for a short time. At 1250 ° C, Sn could enhance the oxidation resistance of Nb-Si-based alloys due to the formation of a Sn-rich layer. In addition, the oxidation mechanisms of Nb-Si-based alloys at intermediate and high temperatures were discussed. |
| Databáze: | OpenAIRE |
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