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Effect of sample diameter on primary and secondary dendrite arm spacings during directional solidification of Pb-26wt.%Bi hypo-peritectic alloyHU Xiaowua,YAN Honga,CHEN Wenjingb,LI Shuangmingc,and FU... Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China摘 要:The microstructure scales of dendrites,such as primary......
包晶合金定向凝固过程中的对流效应及带状组织形成机制 Ⅱ.理论分析骆良顺1,2,傅恒志1,张宇民2,李新中2,苏彦庆2,郭景杰2(1.黑龙江省哈尔滨市哈尔滨工业大学材料科学与工程学院2.黑龙江省哈尔滨市哈尔滨工业大学特种环境复合材料技术国防科技重点实验室)摘 要:本文分别利用纯扩散模型,溶质边界层对流模型和强对流Scheil方程对包晶合金定向凝固过程中的带状组织,宏观偏析的形成规律以及对流效应进行系统研究,详细讨论了对流对包晶合金定向凝固过程中带状组织和宏观偏析的影响规律.与Fe-Ni包晶合金定向凝固实验结果进行......
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Directional solidification of Ti-45Al-8Nb-(W,B,Y) alloyDING Xianfei,LIN Junpin,HE Jianping,YE Feng,and CHEN Guoliang State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China摘 要:Using a Bridgman vertical vacuum furnace,Ti-45Al-8Nb-(W,B,Y) (at.%) bars,which were prepared from a plasma arc......
Evolution of Grain Selection in Spiral Selector during Directional Solidification of Nickel-base SuperalloysXiangbin Meng1,2),Jinguo Li1),Tao Jin1),Xiaofeng Sun1),Changbo Sun3) and Zhuangqi Hu1) 1) Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China 2) Graduate School of Chinese Academy of Sciences,Beijing 100049,China 3) Shenyang Liming Aero-engine(Group) Corporation......
; Abstract: The relationship between primary dendrite arm spacing and sample diameter was studied during directional solidification for Al-4%Cu (mass fraction) alloy. It is shown... TRIVEDI model is suitable for describing primary dendrite arm spacing with a larger diameter (d＞2 mm) where convection should be considered. Key words: directional solidification; sample diameter......
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Directional solidification and physical properties measurements of the zinc-aluminum eutectic alloyS.Engin1,U.Byük2,H.Kaya2,N.Maraslι31. Department of Physics,Institute of Science and Technology,Erciyes University2. Department of Science Education,Faculty of Education,Erciyes University3. Department of Physics,Faculty of Science,Erciyes University摘 要: Processing Technology,
Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
Received 26 March 2010; accepted 21 June 2010
Abstract: By the directional solidification...; metal-gas eutectic
1 Introduction
Based on the solubility difference of gas between liquid and solid metals, regular porous metals with oriented pores could be fabricated by directional solidification......Influence of solidification mode on pore structure of directionally solidified porous Cu-Mn alloy
来源： 《中国有色金属学报(英文版)2011年第1期》——李言祥 蒋光锐 刘源
of the pulsed magnetic field on the grain refinement of superalloy K4169 has been studied in directional solidification. In the presence of the solid–liquid interface condition, the distributions of the electromagnetic force, flow field, temperature field, and Joule heat in front of the solid–liquid interface in directional solidification with the pulsed magnetic field are simulated. The calculation......
