Effect of Pre-Oxidation on the Steam Oxidation of Heat-Resistant Steel T92
| Autor: | Ding Jianliang, Guan Shipian, Zhao Qin-xin, Xu Hong, Liang Zhiyuan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Technology Heat resistant Materials science Chemical technology Metallurgy Chemicals: Manufacture use etc TP200-248 TP1-1185 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences steam oxidation Mechanics of Materials 0103 physical sciences pre-oxidation Surface modification t92 steel General Materials Science Physical and Theoretical Chemistry 0210 nano-technology surface modification |
| Zdroj: | High Temperature Materials and Processes, Vol 37, Iss 8, Pp 733-739 (2018) |
| ISSN: | 2191-0324 0334-6455 |
| Popis: | Effect of pre-oxidation on the steam oxidation of T92 heat-resistant steel at 650 °C was investigated. The results show that the mass gain and the oxide thickness of T92 sample with pre-oxidation treatment were lower than that of T92 sample after exposure in steam at 650 °C. The compact and discrete Cr-rich oxide which formed on the pre-oxidized specimen hindered ion diffusion, leading to the lower oxidation rate. The effect of pre-oxidation worked at the initial stage due to the protective Cr-rich layer formed in air gas. After a long time exposure in steam, the pre-oxidation influence decreased slowly and eventually disappeared. What’s more, the adhesion property of oxide scale was improved by pre-oxidation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|