MACROSEGREGATION

作品数：62被引量：134H指数：6
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相关作者：王国庆熊林玉李权齐铂金吴爱萍更多>>
相关机构：北京宇航系统工程研究所首都航天机械公司中国运载火箭技术研究院清华大学更多>>
相关期刊：《Progress in Natural Science:Materials International》《Journal of Mechanics Engineering and Automation》《Acta Metallurgica Sinica(English Letters)》《China Foundry》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划高等学校学科创新引智计划中国博士后科学基金更多>>
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Numerical simulation and experimental investigation of manufacturing route of directional casting super slab
《Journal of Iron and Steel Research International》2025年第3期659-670,共12页Ming Li Jun Fu Neng Ren Biao Tao Alan Scholes Jun Li Jian-guo Li Hong-biao Dong 
the National Natural Science Foundation of China(No.52074182);Joint Funds of the National Natural Science Foundation of China(No.U23A20612).
We proposed a new technique route of directional solidification for the manufacture of super slab.A 7-t laboratory-scale thick slab was casted and characterised for trial.To further understand the process,the evolutio...
关键词：Super slab Directional solidification MACROSEGREGATION Numerical simulation Grain structure Steel 
The role of different electromagnetic fields in magnesium alloys direct-chill casting:Numerical simulation and experimental investigation
《Journal of Magnesium and Alloys》2024年第12期5005-5023,共19页Yonghui Jia Xingrui Chen Qichi Le Yunchang Xin 
financially supported by the National Natural Science Foundation of China(Grant No.51974082);Jiangsu Funding Program for Excellent Postdoctoral Talent(Grant No.2023ZB644);China Postdoctoral Science Foundation(Grant No.2023M741655)。
Based on the magnetic-fluid-thermal multiphysics transient coupling numerical simulation results of the magnesium alloy direct-chill(DC)casting,the effects of conventional vibration electromagnetic field(VMF),differen...
关键词：Electromagnetic field DC casting Magnesium alloy Flow and temperature fields Solidification structure MACROSEGREGATION 
Volume-averaged modeling of multiphase solidification with equiaxed crystal sedimentation in a steel ingot被引量：1
《China Foundry》2024年第3期229-238,共10页Xiao-lei Zhu Shuang Cao Rui Guan Ji Yang Zhe Ning Xin-gang Ai Sheng-li Li Xin-cheng Miao 
supported by the National Key Research and Development Program of China(2021YFB3702005);the National Natural Science Foundation of China(52304352);the Central Government Guides Local Science and Technology Development Fund Projects(2023JH6/100100046);2022"Chunhui Program"Collaborative Scientific Research Project(202200042);the Doctoral Start-up Foundation of Liaoning Province(2023-BS-182);the Technology Development Project of State Key Laboratory of Metal Material for Marine Equipment and Application[HGSKL-USTLN(2022)01].
Macrosegregation is a critical factor that limits the mechanical properties of materials.The impact of equiaxed crystal sedimentation on macrosegregation has been extensively studied,as it plays a significant role in ...
关键词：ingot casting multiphase solidification model equiaxed crystal sedimentation microstructure MACROSEGREGATION 
Research progress and prospects on the formation mechanism of macrosegregation and shrinkage porosity in large steel ingots
《Progress in Natural Science:Materials International》2024年第3期470-481,共12页Xiang Liu Chaojie Zhang Shaowei Hu Liqiang Zhang Haichuan Wang 
supported by the National Natural Science Foundation of China under Grant No.52104317 and 51874001
Macrosegregation and shrinkage porosity in large steel ingots are key factors restricting the homogenization of large cast and forged parts.Due to the complex mechanisms of their formation,they have always been challe...
关键词：Large steel ingot MACROSEGREGATION Shrinkage porosity Solidification process Mathematical model 
Effects of macrosegregation on mechanical and tribological properties of squeeze casting immiscible bearing alloys
《China Foundry》2023年第5期443-451,共9页Ming Xu Yan-guo Yin Cong-min Li Guo-tao Zhang Cong-chong Duan 
This research was financially supported by the National Natural Science Foundation of China(No.51575151 and No.52005005);the Science and Technology Project of Anhui Province,China(No.1501021006).
The macrosegregation behaviors of Al-Sn-Cu ternary immiscible alloy castings and their effects on mechanical and tribological properties were investigated.The results demonstrate that Sn and Cu segregate in the castin...
关键词：squeeze casting Al-Sn-Cu MACROSEGREGATION mechanical properties tribological property 
Effect of feeding parameters on ingot segregation and shrinkage pore in vacuum arc remelting被引量：3
《Journal of Iron and Steel Research International》2023年第6期1268-1278,共11页Dong-bin Jiang Fu-zhong Yang Jian Zhang Yang Zhou Li-feng Zhang 
the support from Science and Technology Program of Hebei(Nos.20311004D and 20591001D);National Natural Science Foundation of China(No.51904024).
The feeding parameters in the final stage of vacuum arc remelting process obviously affect the solute segregation and shrinkage pore depth.Coupled with the electromagnetic field,fluid flow,and solute transport,a numer...
关键词：Vacuum arc remelting Feeding parameter MACROSEGREGATION Shrinkage pore Solidification 
A comparative study on Sn macrosegregation behavior of ternary Al-Sn-Cu alloys prepared by gravity casting and squeeze casting被引量：3
《China Foundry》2023年第1期63-70,共8页Ming Xu Yan-guo Yin Cong-min Li Cong-chong Duan 
financially supported by the National Natural Science Foundation of China(No.51575151);the Science and Technology Project of Anhui Province,China(No.1501021006)。
A comprehensive study on Sn macrosegregation behavior in ternary Al-Sn-Cu alloys was carried out by comparative analysis between gravity casting and squeeze casting samples.The microstructure and Sn distribution of th...
关键词：ternary Al-Sn-Cu alloy squeeze casting MACROSEGREGATION mechanism 
A review on prediction of casting defects in steel ingots:from macrosegregation to multi-defect model被引量：3
《Journal of Iron and Steel Research International》2022年第12期1901-1914,共14页Jun Li Xiao-wei Xu Neng Ren Ming-xu Xia Jian-guo Li 
This work is sponsored by the National Natural Science Foundation of China(Grant No.52074182);Natural Science Foundation of Shanghai(Grant No.22ZR1430700).
Due to the nature of the solute redistribution,the reduction in the solidification rate with time in a square root relationship,and the multiphase melt flow during the solidification,casting defects such as macrosegre...
关键词：Steel ingot MACROSEGREGATION Numerical modeling Multiphase model Solidification defect 
Application of heat absorption method to reduce macrosegregation during solidification of bearing steel ingot被引量：2
《Journal of Iron and Steel Research International》2022年第12期1915-1926,共12页Sheng Yu Long-qiang Zhu Jin-hu Lai Ming-xu Pan Yue-yun Liu Wei-dong Xuan Jiang Wang Chuan-jun Li Zhong-ming Ren 
This work was supported by National Key R&D Program of China(Grant No.2019YFA0705303);National Natural Science Foundation of China(Grant No.52127807);National Science and Technology Major Project"Aeroengine and Gas Turbine"(Grant No.2017-VII-0008-0102);Independent Research and Development Project of State Key Laboratory of Advanced Special Steel,Shanghai Key Laboratory of Advanced Ferrometallurgy,Shanghai University(SKLASS 2020-Z05);the Science and Technology Commission of Shanghai Municipality(No.19DZ2270200).
The control of macrosegregation is still a difficult problem for the production of large steel ingots.In order to develop new techniques for producing low-macrosegregation and high-quality steel ingots,the effect of t...
关键词：Large steel ingot MACROSEGREGATION Inorganic material Heat absorption method Mathematical simulation 
Improving ingot homogeneity by modified hot-top pulsed magneto-oscillation被引量：3
《Journal of Iron and Steel Research International》2022年第12期1939-1950,共12页Fan Zhang Hong-gang Zhong Yu-qian Yang Ming-xu Pan Ren-xing Li Qi-jie Zhai 
This work was financially supported by the National Key Research and Development Program of China(Nos.2020YFB2008400 and 2017YFB0701800);the National Natural Science Foundation of China(No.U1760204);In addition,the authors would liketo thankHui Shaoand Zi-hao Yin from Centerfor Advanced Solidification Technology,Shanghai University for their help in the experiment and data analysis.
Heavy ingots,especially the ingot of more than 10 t,often contain detrimental heterogeneous defects,such as macrosegregation,shrinkage pipes,and cracks.Hot-top pulsed magneto-oscillation(HPMO)can refine the solidified...
关键词：HOMOGENEITY Hot-top pulsed magneto-oscillation Heavy ingot MACROSEGREGATION Simulation 
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