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Journal of Iron and Steel Research(International) 2022年第1期29卷 3-16页

作者： Wan-lin Wang Cheng Lu Le-jun Zhou Pei-sheng Lyu School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina National Center for International Research of Clean Metallurgy Central South UniversityChangsha 410083HunanChina

Interfacial heat transfer behavior between the molten steel and twin-rolls is a key issue in the strip casting process,and it has already attracted wide attention from industrial and academic communities of steel.The research methods and influencing factors on the Interfacial heat transfer were summarized.Numerical simulation models,semi-industrial scale,and laboratory equipment have been developed in this field,and these methods were also improved by worldwide researchers based on the development of computer,automatic,and visual technologies.Coating properties,naturally deposited film,and casting parameters are the main factors which affect the heat transfer significantly.Although lots of research has been carried out,the internal relations among these influencing factors,Interfacial heat transfer,and the quality of the strip are still worth to be further explored.Keywords Strip casting Interfacial heat transfer Simulation method Coating property Naturally deposited film Casting parameter.

关键词： Strip casting Interfacial heat transfer Simulation method Coating property Naturally deposited film Casting parameter

Effect of phosphorus content on Interfacial heat transfer and film deposition behavior during the high-temperature simulation of strip casting

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 1016-1025页

作者： Wanlin Wang Cheng Lu Liang Hao Jie Zeng Lejun Zhou Xinyuan Liu Xia Li Chenyang Zhu School of Metallurgy and Environment Central South UniversityChangsha 410083China National Center for International Research of Clean Metallurgy Central South UniversityChangsha 410083China Institute of Research of Iron and Steel ShasteelJiangsu ProvinceZhangjiagang 215625China

The interfacial wettability and heat transfer behavior are crucial in the strip casting of high phosphorus-containing steel.A hightemperature simulation of strip casting was conducted using the droplet solidification technique with the aims to reveal the effects of phosphorus content on interfacial wettability,deposited film,and Interfacial heat transfer behavior.Results showed that when the phosphorus content increased from 0.014wt%to 0.406wt%,the mushy zone enlarged,the complete solidification temperature delayed from1518.3 to 1459.4℃,the final contact angle decreased from 118.4°to 102.8°,indicating improved interfacial contact,and the maximum heat flux increased from 6.9 to 9.2 MW/m2.Increasing the phosphorus content from 0.081wt%to 0.406wt%also accelerated the film deposition rate from 1.57 to 1.73μm per test,resulting in a thickened naturally deposited film with increased thermal resistance that advanced the transition point of heat transfer from the fifth experiment to the third experiment.

关键词： strip casting Interfacial heat transfer interfacial wettability naturally deposited film phosphorus content

A Comprehensive Review for Micro/Nanoscale Thermal Mapping Technology Based on Scanning Thermal Microscopy

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Journal of Thermal Science 2022年第4期31卷 976-1007页

作者： LI Yifan ZHANG Yuan LIU Yicheng XIE Huaqing YU Wei School of Energy and Materials Shanghai Polytechnic UniversityShanghai 201209China Shanghai Engineering Research Center of Advanced Thermal Functional Materials Shanghai Polytechnic UniversityShanghai 201209China

Thermal characterization becomes challenging as the material size is reduced to micro/nanoscales.Based on scanning probe microscopy(SPM),scanning thermal microscopy(STh M)is able to collect thermophysical characteristics of the microscopic domain with high spatial resolution.Starting from its development history,this review introduces the operation mechanism of the instrument in detail,including working principles,thermal probes,quantitative study,and applications.As the core principle of STh M,the heat transfer mechanism section is discussed emphatically.Additionally,the emerging technologies based on the STh M platform are clearly reviewed and corresponding examples are presented in detail.Finally,the current challenges and future opportunities of STh M are discussed.

关键词： micro/nanoscale thermal mapping scanning thermal microscopy Interfacial heat transfer thermoelectrics

Thermal Response of Mould in High Speed Casting of Stainless Steel Billet

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Journal of Iron and Steel Research(International) 2002年第2期9卷 15-20页

作者： WANG Bao-feng SAMARASEKERA I V Baotou University of Iron and Steel Tech University of British Columbia

The hot rolling of slab was studied with the aid of elastic plastic and thermomechanical couple FEM. On the basis of experiment and numerical analysis, the physical models for Interfacial heat transfer during hot rolling were established. The results indicated that the deformation, cracking and decohesion behavior of the oxide scale have considerable effects on temperature distribution of slab during hot rolling.

关键词： Interfacial heat transfer oxide scale temperature distribution hot rolling

Determination of interfacial heat Flux of Stainless Steel Solidification on Copper Substrate During the First 0.2 s

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Journal of Shanghai Jiaotong university(Science) 2011年第1期16卷 65-70页

作者：张卫于艳方园李建国 School of Materials Science and Engineering Shanghai Jiaotong University Baosteel Research Institute Baosteel Co. Ltd

Interfacial heat transfer is a key issue in many solidification processes.In the paper,a novel experimental apparatus has been designed and on this basis,the instantaneous Interfacial heat transfer between molten steel or solidified shell and copper substrate during the first 0.2 s has been studied.The investigated parameters include melt superheat,substrate temperature and surface roughness.The results show that the peak value of the interfacial heat flux in the first stage of liquid/solid contact increases with melt superheat and changes slightly with substrate temperature and surface roughness.The interfacial heat flux in the stage of solid/solid contact has a similar trend of slow decrease in most conditions.

关键词： rapid solidification Interfacial heat transfer heat flux