PDF
Full
Outline
It is concluded in this research that strength and toughness of steel can be significantly improved by precipitation strengthening and fine-grained strengthening after adding trace alloying elements of V, Nb and Ti in steel and combining with C and N in steel. Based on the thermodynamic calculation software, the V, Nb and Ti composite microalloying design of non-quenched & tempered 46MnVS6 steel was realized. At the same time, the rolling heating process dissolved the liquid phase of the large particles and realized the high strength design of the material. In addition, the special slag system of non-quenched & tempered steel with low and medium basicity was developed through the simulation calculation of refining slag system, which ensured the precise control of S element in the refining process. The results show that non-metallic inclusions control in non-quenched & tempered steel and the sulfide morphology are optimized, and cutting performance of the material is improved.
PDF
204
87
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
