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In the article, a type of FeMnAlC series of low density steel is designed. Its tensile strengths of rolling direction (RD) and transverse direction (TD) are both greater than 1 300 MPa as well as it is with higher elongation. On the basis of ensuring stable high strength and toughness of the material, the corrosion behaviors of FeMnAlC series of low density steel in the simulated naval air environment with high temperature, humidity and salt spray are studied through the indoor accelerated test with alternation of wetting and drying as well as the tests with scanning electron microscopy (SEM), energy disperse spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) to provide the references for evaluating corrosion resistance of the new generation of high strength low density steel.
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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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