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In this paper, YQ450NQR1 zed beam is taken as the research object and trace rare earth elements are added in smelting process to improve its corrosion resistance. The influences of trace rare earth elements on corrosion resistance of YQ450NQR1 zed beam are studied by phase detection, alternate immersion accelerated corrosion test and electrochemical analysis of rust layer. The study results showed that the grain could be refined, stable α-FeOOH could be promoted to be generated so that rust layer was more compact by adding trace rare earth elements into YQ450NQR1 zed beam. As a result, the self-corrosion potential of material is improved and transfer resistance of charge is increased so that the corrosion resistance of material is improved.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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