云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(50971105)

国家自然科学基金(50971105): 作品数：20被引量：50H指数：5; 导出分析报告; 相关作者：魏炳波解文军王伟丽闫娜洪振宇更多>>; 相关机构：西北工业大学更多>>; 相关期刊：《科学通报》《中国科学：物理学、力学、天文学》《Science China(Physics,Mechanics & Astronomy)》《Science Bulletin》更多>>; 相关主题：声悬浮快速凝固共晶合金RAPID_SOLIDIFICATION振荡更多>>; 相关领域：金属学及工艺理学一般工业技术机械工程更多>>

Solute redistribution profiles during rapid solidification of undercooled ternary Co-Cu-Pb alloy被引量：1: 《Science China(Physics,Mechanics & Astronomy)》2014年第3期393-399,共7页YAN Na WANG WeiLi XIA ZhenChao WEI BingBo; supported by the National Natural Science Foundation of China (Grant Nos. 51327901,50971105 and 51301138);the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20126102120064);the Fundamental Research Fund of Northwestern Polytechnical University (Grant No. JC20110278); The solute redistribution and phase separation of liquid ternary Co-35%Cu-32.5%Pb immiscible alloy have been investigated using glass fluxing method.A bulk undercooling of 125 K was achieved and the macrosegregation p...; 关键词：solute redistribution phase separation MACROSEGREGATION UNDERCOOLING rapid solidification

Thermodynamic properties and microstructural characteristics of binary Ag-Sn alloys被引量：2: 《Chinese Science Bulletin》2013年第8期938-944,共7页ZHAI Wei WEI BingBo; supported by the National Natural Science Foundation of China (50971105 and 51201136);Doctoral Fund of Ministry of Education of china (20126102120059);Aviation Foundation of China (2012ZF53069);Technology Foundation for Selected Overseas Chinese Scholar, ShaanXi Province, Northwestern Polytechnical University Excellent Personnel Supporting Project of Ao Xiang Star;Fundamental Research Fund of Northwestern Polytechnical University (JC20110280); The liquidus and solidus temperatures and enthalpy of fusion for Ag-Sn alloys are systematically measured within the whole composition range by differential scanning calorimetry (DSC). The measured enthalpy of fusion ...; 关键词：合金凝固热力学性质二进制差示扫描量热法特征组织金属间化合物温度区间

急冷条件下NiAl-Mo三元共晶合金的组织形成机制: 《物理学报》2013年第4期472-478,共7页边文花代富平王伟丽赵宇龙; 国家自然科学基金(批准号:50971105;51101123);教育部博士点基金(批准号:20106102120052);西北工业大学研究生创业种子基金(批准号:Z2012147)资助的课题~~; 采用单辊急冷技术实现了NiAl-Mo三元两相共晶合金的快速凝固,同时与常规条件下的凝固组织进行了对比研究.实验发现,单辊急冷的合金条带与常规条件的凝固样品均由B2结构的NiAl金属间化合物和bcc结构的Mo固溶体两相组成,两相均具有(110)...; 关键词：快速凝固三元共晶共晶转变冷却速率

Primary dendrite growth of Ni_3Sn intermetallic compound during rapid solidification of undercooled Ni-Sn-Ge alloy被引量：2: 《Chinese Science Bulletin》2012年第9期1073-1077,共5页WANG WeiLi QIN HaiYan XIA ZhenChao WEI BingBo; supported by the National Natural Science Foundation of China (51101123 and 50971105);the Fundamental Research Fund of Northwestern Polytechnical University (JC201050); Liquid Ni-31.7%Sn-2.5%Ge alloy was highly undercooled by up to 238 K(0.17TL) with glass fluxing and drop tube techniques.The dendritic growth velocity of primary Ni3Sn compound shows a power-law relation to undercooli...; 关键词：金属间化合物合金相深过冷枝晶生长凝固过程生长速度幂律关系最大速度

Density and structure of undercooled liquid titanium: 《Chinese Science Bulletin》2012年第7期719-723,共5页HaiPeng Wang ShangJing Yang BingBo Wei; supported by the National Natural Science Foundation of China (50971103 and 50971105);the Program for New Century Excellent Talents;the Natural Science Foundation of Shaanxi Province (2010JQ6004);the Shaanxi Project for Young New Star in Science and Technology;the NPU Foundation for Fundamental Research; For liquid Ti, it is difficult to achieve high undercooling because of its chemical reactivity; as a result, there is little information available on its properties and structure in the undercooled state. In this stud...; 关键词：深过冷密度结构液体分子动力学方法钛化学反应熔融温度

Dual solidification mechanisms of liquid ternary Fe-Cu-Sn alloy被引量：1: 《Science China(Physics,Mechanics & Astronomy)》2012年第3期450-459,共10页WeiLi Wang XiaoMei Zhang LiuHui Li BingBo Wei; supported by the National Natural Science Foundation of China (Grant Nos. 51101123 and 50971105);the Fundamental Research Fund of Northwestern Polytechnical University (GrantNo. JC201050); Liquid ternary Fe47.5Cu47.5Sn5 alloy displayed dual solidification mechanisms when it was undercooled by up to 329 K （0.19TL）. Below a critical undercooling of about 196 K, it solidified just like a normal peritecti...; 关键词：peritectic solidification phase separation MACROSEGREGATION UNDERCOOLING dendritic growth

The ninth-mode sectorial oscillation of acoustically levitated drops被引量：5: 《Chinese Science Bulletin》2011年第31期3284-3288,共5页YAN ZhenLin XIE WenJun GENG DeLu WEI BingBo; supported by the National Natural Science Foundation of China (50971105, 51071126); We report on the ninth-mode sectorial oscillation of acoustically levitated drops excited by actively modulating sound pressure. A numerical computation based on the level set method was performed to model drop shape ...; 关键词：振荡频率扇形悬浮声学 RAYLEIGH方程数值计算模型实验观察水平集方法

Understanding atomic-scale phase separation of liquid Fe-Cu alloy被引量：8: 《Chinese Science Bulletin》2011年第32期3416-3419,共4页WANG HaiPeng WEI BingBo; supported by the National Natural Science Foundation of China (50971103 and 50971105);the Program for New Century Excellent Talents, Natural Science Foundation of Shaanxi Province (2010JQ6004);Shaanxi Project for Young New Star in Science and Technology;NPU Foundation for Fundamental Research; Using liquid Fe 60 Cu 40 alloy as a model, the structure of liquid Fe-Cu alloy systems is investigated in the temperature range 1200 2200 K, covering a large metastable undercooled regime, to understand the phase sepa...; 关键词：Fe-Cu合金液态合金原子尺度相分离 PDF格式数字显示对分布函数合金系统

声悬浮条件下扇谐振荡液滴的内部流动规律被引量：3: 《中国科学：物理学、力学、天文学》2011年第9期1096-1103,共8页鄢振麟解文军魏炳波; 国家自然科学基金资助项目(批准号:50971105;51071126); 采用激光片光源照明和高速摄影技术,并使用聚苯乙烯微球作为示踪颗粒,研究了声悬浮条件下二阶和三阶扇谐振荡液滴的内部流场.耦合Level Set方法和标记网格法数值求解了不可压两相流的Navier-Stokes方程,模拟了液滴的扇谐振荡过程中的形...; 关键词：声悬浮液滴动力学扇谐振荡 LEVEL SET方法

快速凝固Fe_(62.1)Sn_(27.9)Si_(10)合金的分层组织和偏晶胞形成机理被引量：7: 《物理学报》2011年第10期705-714,共10页李志强王伟丽翟薇魏炳波; 国家自然科学基金(批准号:50971105);西北工业大学基础研究基金(批准号:JC201050)资助的课题~~; 采用自由落体和单辊急冷技术研究了三元Fe62.1Sn27.9Si10偏晶合金的相分离和组织形成规律,理论分析了两种快速凝固条件下合金的传热特性.自由落体条件下,由于Marangoni迁移和表面偏析势的作用,液滴凝固组织主要形成富Sn相包裹富Fe相的...; 关键词：Fe-Sn-Si偏晶合金相分离快速凝固溶质截留

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