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The Microstructure, friction and wear reduction and noise performance of FAS3420 steel samples with different surface treatments are investigated using XRD, EDS, SEM, friction and wear testing, fatigue testing, and NVH measurements. The results indicate that after low-temperature ion sulfurization and magnetron sputtering treatment, a sulfurizing layer primarily composed of FeS formed on the surface of the carburized and quenched steel. Supported by a high-hardness fine-needle martensite structure, the friction coefficient and volumetric wear rate are significantly reduced, demonstrating improved friction reduction, wear resistance, and anti-seizure capabilities, which can effectively extend the fatigue life of shaft and gear components. Through the surface protection and repair effects of sulfide solid lubricating films, direct metal contact and collisions, impacts, vibrations, and other noises caused by gear wear and deformation are reduced, thereby achieving friction reduction and noise suppression.
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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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