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; solute field; flow field; centerline segregation; Kiss point 双辊薄带铸轧技术被认为是21世纪冶金行业最有发展潜力的技术之一,该工艺是将高温金属液浇入一对相对转动结晶辊间形成熔池,金属经过结晶辊冷却和轧制作用,直接加工为成品薄带.而芯部夹层和偏析问题是困扰双辊薄带铸轧技术发展的难题之 一[1].夹层和偏析不仅会使产品...心线偏析；Kiss点 中图分类号:TG111.4 文献标志码:A Mechanism and experimental research on centerline segregation of twin-roll strip......
Numerical analysis of interaction between solute atom and extended dislocation using force multipolesHiroaki Morita, Akiyuki Takahashi(Department of Mechanical Engineering, Faculty of Science and Technology,Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba, Japan)Abstract:The interaction between a solute atom and an extended dislocation was investigated using a continuum approximation......
microscopy. The results show that microstructure refines, duplex grains structure consisting of coarse-cell and fine-cell dendritic grains decrease, and so does the segregation grade of solute elements when alloy melt is treated by ultrasonic vibration. With the increase of ultrasound power, distribution of solute elements is harmonious. When the ultrasonic power is from 0 to 240 W, the segregation......
="ChDivSummary" name="ChDivSummary">Segregation and inclusion precipitation are the common behaviours of steel solidification, which are resulted from the redistribution and diffusion of the solute... were comprehensively influenced by kMn, kS and Mn S precipitation as well. The studies would help reveal the solute redistribution at the solid-liquid interface, and improve the segregation of high......
are rejected to the interdendritic region, makes the interdendritic liquid have an average density lower than that of the liquid above it. This density difference caused by the segregation of solute elements...Trans. Nonferrous Met. Soc. China 23(2013) 3257-3264 Effect of carbon and boron additions on segregation behavior of directionally solidified nickel-base superalloys with rhenium Qin HU1,2, Lin LIU1......
Investigation of the solute transportation coupled with heat transfer and fluid flow during twin-roll strip casting process Wanjun WANG1,Xinhua WANG1,Jiongming ZHANG1,Chenxi JI2,Yongsheng WANG1...:Mathematical model of solute [C] distribution in twin-roll strip casting process has been setup successfully with Calcosoft for the first time. Simulation result shows that in the center......
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in eutectic or hypoeutectic Al-Si alloys. In addition, solute redistribution caused by chemical driving force and large pile-ups or micro-segregation of the solute play an important role.... Crystal growth is affected by not only heat transfer but also solute redistribution which results in segregation or compositional inhomogeneity during solidification. Under equilibrium conditions......
Effect of cobalt on chemical segregation and solution process in Re-containing single crystal superalloys WANG Wen-zhen(王文珍)1, 2, JIN Tao(金 涛)1, ZHAO Nai-ren(赵乃仁)1, WANG Zhi-hui(王志辉)1, SUN Xiao... 100039, China Received 28 July 2006; accepted 15 September 2006 Abstract: The effect of cobalt on chemical segregation and solution process in three nickel base single crystal superalloys......
Experimental Investigation on Microstructure and Segregation of Ultrahigh Strength Al-Zn-Mg-Cu-Zr-Sc-Ni Alloy during Homogenization () 摘要:Ultrahigh strength... and then thinner under different homogenizing condition and grain coarsening were observed. The solute elements content of Zn inside grains has a peak at 490 ℃/2 h, and Cu element, which was solved into matrix, can......
