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国家自然科学基金(50395105): 作品数：30被引量：91H指数：6; 导出分析报告; 相关作者：魏炳波王海鹏代富平阮莹徐锦锋更多>>; 相关机构：西北工业大学西安理工大学更多>>; 相关期刊：《Science Bulletin》《物理学报》《Science China(Physics,Mechanics & Astronomy)》《Science China(Technological Sciences)》更多>>; 相关主题：UNDERCOOLINGTERNARY深过冷快速凝固EUTECTIC更多>>; 相关领域：金属学及工艺理学一般工业技术自然科学总论更多>>

Rapid solidification of Al-Cu-Ag ternary alloy under the free fall condition: 《Science China(Physics,Mechanics & Astronomy)》2009年第6期848-855,共8页DAI FuPing WEI BingBo; Supported by the National Natural Science Foundation of China (Grant Nos.50121101 and 50395105); The rapid solidification of Al-30%Cu-18%Ag ternary alloy is investigated by using the free fall method. Its solidified microstructure is composed of θ(Al2Cu), α(Al) and ξ(Ag2Al) phases. The liquidus temperature and...; 关键词：Al-Cu-Ag free FALL NUCLEATION TERNARY EUTECTIC rapid solidification high UNDERCOOLING

Dendrite growth characteristics within liquid Fe-Sb alloy: 《Science China(Physics,Mechanics & Astronomy)》2009年第5期720-728,共9页WANG WeiLi LüYongJun QIN HaiYan WEI BingBo; Supported by the National Natural Science Foundation of China (Grant Nos. 50121101 and 50395105); Bulk samples and small droplets of liquid Fe-10%Sb alloys are undercooled up to 429 K (0.24TL) and 568 K (0.32TL), respectively, with glass fluxing and free fall techniques. The high undercooling does not change the p...; 关键词：LIQUID PHYSICS DENDRITE growth SOLUTE distribution segregationless SOLIDIFICATION

Core-shell microstructure formed in the ternary Fe-Co-Cu peritectic alloy droplet被引量：1: 《Chinese Science Bulletin》2009年第8期1287-1294,共8页DAI FuPing WEI BingBo; Supported by the National Natural Science Foundation of China (Grant Nos.50121101,50395105);NPU Youth Scientific and Technological Innovation Foundation (Grant No.W016223); The metastable liquid phase separation occurs in the ternary Cu50Fe37.5Co12.5 peritectic alloy droplets during free fall. The separated alloy melt rapidly solidifies and evolves core-shell microstructure composed of L...; 关键词：合金液滴微结构核壳三元 FE 沉积 Co 包晶

液态三元Ni-Cu-Fe合金比热的实验与计算研究被引量：2: 《物理学报》2009年第1期384-389,共6页陈乐王海鹏魏炳波; 国家自然科学基金项目(批准号:50121101和50395105)资助的课题~~; 采用电磁悬浮落滴式量热方法测定了液态三元Ni60Cu20Fe20合金在1436—2008K温度范围内的比热,实验获得的最大过冷度达232K(0.14TL),结果表明比热值为33.27J.mol-1.K-1,并且随温度变化很小.在实验基础上,根据分子动力学方法结合嵌入原子...; 关键词：液态合金比热电磁悬浮分子动力学计算

Rapid solidification of undercooled Al-Cu-Si eutectic alloys被引量：3: 《Chinese Science Bulletin》2009年第1期53-58,共6页RUAN Yina WEI BinaBo; Supported by the National Natural Science Foundation of China (Grant Nos.50121101,50395105);the Doctorate Foundation of Northwestern Polytechnical University (Grant No.CX200419); Under the conventional solidification condition,a liquid aluminium alloy can be hardly undercooled because of oxidation. In this work,rapid solidification of an undercooled liquid Al80.4Cu13.6Si6 ternary eutectic allo...; 关键词：液体物理学三重共晶过冷现象晶体成核

Phase field simulation of monotectic transformation for liquid Ni-Cu-Pb alloys: 《Chinese Science Bulletin》2009年第2期183-188,共6页LUO BingChi WANG HaiPeng WEI BingBo; Supported by the National Natural Science Foundation of China (Grant Nos. 50121101, 50395105); Based on the subregular solution model, the liquid phase separation of ternary (NixCu100-x)50Pb50 monotectic alloys is simulated by the phase field method. It is found that if the surface segregation potential is not ...; 关键词：Ni-Cu-Pb合金偏晶合金合金微结构微观相场法

Heat and mass transfer characteristics during rapid solidification of Fe-Cu peritectic alloys: 《Science China(Physics,Mechanics & Astronomy)》2008年第5期459-469,共11页XU JinFeng DAI FuPing WEI BingBo; the National Natural Science Foundation of China(Grant Nos.50121101 and 50395105); The viscose flow and microstructure formation of Fe-Cu peritectic alloy melts are investigated by analyzing the velocity and temperature fields during rapid solidifi-cation,which is verified by rapid quenching experim...; 关键词：PERITECTIC alloy liquid phase separation fluid flow heat TRANSFER RAPID SOLIDIFICATION

三元Sb_(60)Ag_(20)Cu_(20)合金中枝晶与共晶的快速生长: 《中国科学（G辑）》2007年第5期607-616,共10页阮莹魏炳波; 国家自然科学基金(批准号:50121101和50395105);西北工业大学博士论文创新基金(批准号:CX200419)资助项目; 采用深过冷方法实现了三元Sb60Ag20Cu20合金的快速凝固,最大过冷度达到142K(0.18TL).在40～142K过冷范围内,合金凝固组织由(Sb),θ(Cu2Sb)和ε(Ag3Sb)相组成.深过冷扩大了(Sb)相的固溶度,从而使其点阵发生膨胀,点阵参数值增大.初生(Sb)...; 关键词：深过冷三元共晶晶体形核枝晶生长

Formation of ■ phase in Cu-Ge peritectic alloys被引量：4: 《Chinese Science Bulletin》2007年第19期2630-2635,共6页RUAN Ying DAI FuPing WEI BingBo; the National Natural Science Foundation of China (Grant Nos. 50121101 and 50395105);the Doctorate Foundation of Northwestern Polytech-nical University (Grant No. CX200419); Rapid growth behavior of ■ phase has been investigated in the undercooling experiments of Cu-14%Ge, Cu-15%Ge, Cu-18.5%Ge and Cu-22%Ge alloys. Alloys of the four compositions obtain the maximum undercoolings of 202 K(...; 关键词：多组分胶包晶化学实验

快速传热传质对Fe-Cu包晶合金凝固过程的作用机制被引量：1: 《中国科学（G辑）》2007年第4期492-501,共10页徐锦锋代富平魏炳波; 国家自然科学基金资助项目(批准号:50121101和50395105); 通过求解急冷熔体中的速度场和温度场，分析了快速凝固过程中Fe-Cu包晶合金熔体的黏性流动及其组织形成规律，并对理论结果进行了实验验证．发现合金熔体在急冷快速凝固过程中，沿液池的高度方向存在着较大的温度梯度，而在与辊面相切...; 关键词：包晶合金液相分离黏性流动动量传输快速凝固

国家自然科学基金(50395105)