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| 1 | A NEW TECHNIQUE—ELECTROMAGNETIC CENTRIFUGAL CASTING PROCESS显示文摘A new technique of centrifugal casting under electromagnetic field was firstly proposedand investigated.Taking a heat resisting alloy steel 25Cr20Ni and an Al-Cu alloyas examples,products,though their length,diameter and wall thickness are varied,re-vealed so superior macrostructures that the mechanical properties are much improved incomparison with conventional centrifugal casting. | GE Yunlong YANG Yuansheng JIAO Yuning HU Zhuangqi Institute of Metal Research,Academia Sinica,Shenyang,ChinaGAO Yunyan JIA Guanglin Northeast University of Technology,Shenyang,China associate professor,Institute of Low Energy Nuclear Physics,Beijing Normal University,Beijing,100875,China | 1993 | Acta Metallurgica Sinica(English Letters)1993，6，11： | 2 |
| 2 | ANALYSIS OF FLUID FIELD OF LIQUID METAL IN ELECTROMAGNETIC CENTRIFUGAL CASTING显示文摘Navier-Stokes equation and Lorentz force equation are used to calculate the fluid field of liquid metal of electromagnetic centrifugal casting(EMCC) in this paper.A field equationis given,which shows the azimuthal velocity closely relates to electrical conductivity,mag-netic density,viscosity of liquid metal and radius of casting.The results show that the sta-tionary magentic field can effectively restrain the fluid flow and the relative velocity be-tween liquid metal and casting mould and the velocity gradient at solid/liquid interface in-creases with rising magnetic density,which has a great effect on the solidification of liquidmetal and crystal growth characteristies. | JIAO Yuning, LIU Qingmin, YANG Yuangsheng, HU Zhuangqi,Institute of Meta] Research, Chinese Academy of Sciences, Shenyang, ChinaGAO Yunyan, JIA Guanglin, ZHANG Guozhi, QIAO YuanjunNortheast University, Shenyang, China Manuscript received 12 May, 1994 | 1994 | Acta Metallurgica Sinica(English Letters)1994，7，2： | 2 |
| 3 | THEORETICAL ANALYSIS OF PARTICLE DISTRIBUTION IN GRADIENT COMPOSITE BY CENTRIFUGAL CASTING显示文摘A theoretical analysis was presented to produce gradient composite by centrifugal casting.particle movement in liquid metal is described and gradient distribution of particles in com-posite is calculated in a centrifugal field.The factors affected the gradient distribution are discussed in detail .There exist composite zone and blank zone in(?)radient composite.whichwas proved by experiments. Finally,a theoretical analysis is given to explain the abovementioned particle distribution. | LIU Qingmin, JIAO Yuning, YANG Yuamheng, HU ZhuangqiInstitute of Metal Research. Chinese Academy of Sciences, Shenyang, China Manuscript received 26 April, 1994 | 1994 | Acta Metallurgica Sinica(English Letters)1994，7，2： | 0 |
| 4 | THE EFFECT OF ENVIRONMENT WORK ON EFFECTIVE SEGREGATION COEFFICIENT OF SOLUTE AT SOLID/LIQUID INTERFACE显示文摘THEEFFECTOFENVIRONMENTWORKONEFFECTIVESEGREGATIONCOEFFICIENTOFSOLUTEATSOLID/LIQUIDINTERFACE￥JIAOYuning;LIUQingmin;YANGYuanshen... | JIAO Yuning LIU Qingmin YANG Yuansheng HU Zhangqi(Institute of Metal Research,Chinese Academy of Sciences,Shenyang,China | 1995 | Acta Metallurgica Sinica(English Letters)1995，8，2： | 0 |
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