Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Junyu Tian"'
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 1609-1623 (2023)
Two series of high-carbon pearlitic steels (68C-xNb and 75C-xNb) with different C and Nb contents were produced by hot-rolling. The effects of Nb on the microstructure and impact toughness of high-carbon pearlitic steels were investigated using scann
Externí odkaz:
https://doaj.org/article/3e77c20b6cbf42ce9d5d4c1251156558
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 241-251 (2023)
The effects of large stress on bainite transformation and microstructure were investigated by dilatometry, SEM and EBSD. The results show that the effect of large stress on bainite transformation includes two parts: mechanical driving force and prior
Externí odkaz:
https://doaj.org/article/017902a3dc3a41a381743b640bb7682b
Transformation kinetics of carbide-free bainitic steels during isothermal holding above and below MS
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 13594-13606 (2020)
The transformation kinetics of a low carbon bainitic steel was investigated using in situ confocal microscopy and dilatometry for isothermal treatments above and below the martensite start (MS) temperature. Both martensite and bainite are formed duri
Externí odkaz:
https://doaj.org/article/26ea3cdbdd1f469c97d1e6da504cec56
Publikováno v:
Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 15750-15758 (2020)
Both ausforming and austempering below the martensite start temperature (MS) have been shown to accelerate the bainitic transformation. This work investigates the combined effects of deformation and austempering below the MS on the isothermal transfo
Externí odkaz:
https://doaj.org/article/d958e4bec43c492c97c54f27cf2a1092
Publikováno v:
Metals, Vol 12, Iss 1, p 104 (2022)
The microstructure and wear performance of a low-carbon steel treated by austempering below and above martensite start temperature (Ms) were investigated. The results show that the bainite, fresh martensite (FM) and retained austenite (RA) were obser
Externí odkaz:
https://doaj.org/article/f427fe85a7154be095f5f4b230e32fd8
Autor:
Siying Song, Junyu Tian, Juan Xiao, Lei Fan, Yuebiao Yang, Qinpan Yuan, Xiaolong Gan, Guang Xu
Publikováno v:
Metals, Vol 12, Iss 1, p 14 (2021)
Hot tensile tests were conducted in this study to investigate the effect of strain rate (10−3 and 10 s−1) and vanadium content (0.029 and 0.047 wt.%) on the hot ductility of low-carbon microalloyed steels. The results indicate that a hot ductilit
Externí odkaz:
https://doaj.org/article/1e67eeea1a214e1a95f6ab057759cd2c
Publikováno v:
Materials Research Express, Vol 7, Iss 1, p 016519 (2020)
It is commonly accepted that single ausforming with small strain at low temperature promotes isothermal bainite transformation and leads to more retained austenite. In the present study, the effects of two-step ausforming on the bainite transformatio
Externí odkaz:
https://doaj.org/article/ba9e5428ba5841e38e8e747c3ad9020c
Publikováno v:
Energies, Vol 12, Iss 1, p 103 (2018)
With the increasing expansion of wind power, its impact on economic dispatch of power systems cannot be ignored. Adding a heat storage device to a traditional cogeneration unit can break the thermoelectric coupling constraint of the cogeneration unit
Externí odkaz:
https://doaj.org/article/dbe40b7635e54c629e5dbafebf87c054
Publikováno v:
Energies, Vol 11, Iss 10, p 2829 (2018)
As a representative form of new energy generation, wind power has effectively alleviated environmental pollution and energy shortages. This paper constructs a green economic indicator to measure the degree of coordinated development of environmental
Externí odkaz:
https://doaj.org/article/65987ea30c564bbbbb29cb972b28d5ce
Publikováno v:
Metals, Vol 8, Iss 7, p 484 (2018)
An advanced bainite rail with high strength–toughness combination was produced in a steel mill and the effects of tempering on the microstructure and properties of the bainite rail steel were investigated by optical microscopy, transmission electro
Externí odkaz:
https://doaj.org/article/3f0cdc40223e4dd4b32ed2024464553f