Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Fengli Ren"'
Publikováno v:
Science of Sintering, Vol 48, Iss 1, Pp 109-117 (2016)
The microstructure evolution of Mg-Gd-Y-Nd-Zr heat-resistant magnesium alloy after deformation and T5 or T6 treatment were studied. In thermoplastic deformation, dynamic recrystallization and dynamic precipitation has been taken place at the same
Externí odkaz:
https://doaj.org/article/28e6e05334fb4117a2ccceb50641341d
Publikováno v:
Metallurgical and Materials Transactions B. 52:2992-3003
A four-phase solidification model is introduced to comprehensively investigate the formation of macrosegregation, especially the A-segregation during the solidification of a 55-ton ingot (Fe-3.3 wt pct C). The model considers the simulations of melt
Publikováno v:
Metallurgical and Materials Transactions A. 50:1323-1332
A multi-phase dendritic solidification model coupled with Euler–Lagrange framework has been established to characterize the effect of inclusions on macrosegregation in steel ingots. The present model includes many important solidification phenomena
Publikováno v:
Journal of Materials Processing Technology. 262:232-238
Based on the mechanisms of macrosegregation evolution in large steel ingots, an approach named as gradual-cooling solidification (GCS) was proposed to alleviate the macrosegregation of large steel ingots. A three-phase mixed columnar dendritic-equiax
Publikováno v:
2020 2nd International Conference on Machine Learning, Big Data and Business Intelligence (MLBDBI).
Text recognition in natural scenes has always been a hot topic of research. At present, OCR in academia can support multiple languages and has certain versatility. However, the recognition accuracy of Chinese characters, especially those with similar
Publikováno v:
Metallurgical and Materials Transactions A. 49:6243-6254
A four-phase dendritic solidification model is employed to calculate the formation of macrosegregation, as-cast structure, and shrinkage cavity of Al-4.5 wt pct Cu ingot. This model couples phenomena of thermal–solutal buoyancy, crystals sedimentat
Publikováno v:
Journal of Materials Processing Technology. 252:362-369
A mixed columnar dendritic-equiaxed three-phase solidification model that considers the secondary dendrite arm spacing (SDAS), nucleation and growth of equiaxed crystals, sedimentation of equiaxed crystals, growth of columnar dendritic trunks, and co
Autor:
Mingxu Xia, Qiaodan Hu, Jun Li, Hari-Babu Nadendla, Jianguo Li, Fengli Ren, Honghao Ge, Jun-ge Wang
Publikováno v:
Metallurgical and Materials Transactions A. 48:4453-4457
A novel additive casting approach, termed as layer casting (LC), was proposed to fabricate ingots with homogeneous composition and grain structure distribution. Ingots of Al-4.5 wt pct Cu were fabricated using conventional and novel methods to verify
Publikováno v:
Metallurgical and Materials Transactions A. 48:1139-1150
A four-phase dendritic model was developed to predict the macrosegregation, shrinkage cavity, and porosity during solidification. In this four-phase dendritic model, some important factors, including dendritic structure for equiaxed crystals, melt co
Publikováno v:
Neurocomputing. 168:1164-1172
In this paper, a new delayed projection neural network is presented for solving quadratic programming problems subject to equality and inequality constraints. Compared with the existing neural networks for solving such problems, the proposed neural n