undercooling相关论文
The droplets of Cu-11wt.%Sb hypoeutectic alloy have been rapidly solidified during containerless processing in a 3 m dro......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The phenomenon of crystallization was implemented in the synthetic V-bearing steelwork slag based on the composition of ......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The rapid solidification of undercooled liquid Ni_(45)Fe_(40)Ti_(15)alloy was realized by glass fluxing technique.The mi......
The experiments on undercooling of acoustically levitated water drops with the radius of 5-8 mm are carried out, and the......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Formation mechanism of primary phases and eutectic structures within undercooled Pb-Sb-Sn ternary al
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
By using of electrolytic pure iron, the specimens containing different oxide content were made in a Mo wire furnace. The......
Undercooled Fe75Ni25 melts were phase-seeded by a high purity iron.It was found that above a critical undercooling,△Te=......
Spherical Si solar cells were fabricated based on multicrystalline Si spheres produced by a dropping method. The thermal......
Formation mechanism of primary phases and eutectic structures within undercooled Pb-Sb-Sn ternary al
The solidification characteristics of three types of Pb-Sb-Sn ternary alloys with different primary phases were studied ......
Through phase transformation kinetic analysis and experimental observation, the δ/γ transformation occurring in the no......
The phase separation and dendrite growth characteristics of ternary Fe-43.9%Sn- 10%Ge and Cu-35.5%Pb-5%Ge monotectic all......
Niobium-silicide alloys have great potential for high temperature turbine applications. The two-phase Nb/Nb5Si3 in situ ......
The effect of the liquid-liquid structure transition(L-LST) on the solidification behaviors and morphologies of Sn-Bi al......
基于平均体积方法建立过冷单相固溶体合金的凝固动力学模型并研究反向扩散在凝固动力学过程中的作用.模型在过冷Ni-15％Cu(摩尔分数)......
将含12％-32％Sn(摩尔分数)的系列Co-Sn合金熔体过冷至平衡液相线以下不同温度进行凝固实验,通过监测快速凝固过程中的温度再辉与凝固......
The effects of thermodynamic and dynamic factors on nucleation process have been integrated in a theoretical formula rep......
Ni-39.3%Mo, Ni-45%Mo hypoeutectic alloys and Ni-47.7%Mo eutectic alloy have been rapidly solidified with different dropl......
Fe-48.8% Sn monotectic, Fe-40% Sn hypomonotectic and Fe-58% Sn hypermonotectic alloys have been rapidly solidified durin......
The heterogeneous nucleation has been analyzed in terms of the thermodynamic theory, and the mathematical model of wetti......
Fe-58at%Al alloy is undercooled up to 222 K(0.15TL) with the drop tube technique. It is found that there exists a critic......
In this paper, the influence of cooling rate on the undercooling of droplet solidification of metal melt has been invest......
A large undercooling (250 K) was achieved in eutectic Ni78.6Si21.4 melt by the combination of molten-glass denucleation ......
High undercooling (about 392 K) was achieved in the bulk eutectic Ni_(70.2)Si_(29.8) alloy melt through glass fluxing co......
The surface tension and specific heat of Ni-5%Sn alloy melt were measured by the oscillating drop method and the drop ca......
采用熔融玻璃净化与循环过热相结合的方法研究了过冷Ni-2Pb单相偏晶合金的组织粒化机制。 在22～280 K过冷度范围内， Ni-2Pb合金组......
采用惰性形核涂层型壳和氩气保护下循环过热的方法, 使Al72Ni12Co16合金获得200 K的大过冷度, 在此基础上从实验和理论两方面研究......
采用高速摄影仪和扫描电子显微镜研究富铈混合稀土（RE）加入量对Al-80%Si（质量分数）合金悬浮试样凝固行为和凝固组织的影响规律。结果表......
The influence of undercooling and noise magnitude on dendritic sidebranching during crystal growth was investigated by s......
采用熔剂净化深过冷和洁净容器快速凝固方法,研究了Pb-15%Sb过共晶合金在不同凝固条件下的组织演变.在熔剂净化条件下,随着凝固过......
采用经典形核理论与负熵模型相结合,研究了多相竞争形核对竞争相的结构和过冷度的依赖性.通过对Fe70Co30合金熔体中的两个竞争相b.......
基于相场与温度场耦合的相场法原理对Ni-Cu二元合金枝晶长大过程进行二维数值模拟。研究了不同过冷度和各向异性系数等相场参数对......
为解决铸件的白口问题，从铁碳平衡图和合金结晶凝固原理出发，分析了化学成分、过冷度、合金元素、铸型介质、炉料等对产生白口的影响......
研究了电变质处理形成的纯Al凝固晶粒组织。试验过程中对不同电脉冲冲击能量下的过冷度数值进行实测，在此基础上利用连续形核模型和......
采用金相显微镜、扫描电镜、温度记录仪等分析测试手段研究了不同稀土加入量对40CrMnSi元低合金钢的纯净度、过冷度以及晶粒度的影......
为了从微观角度研究水合物的喷雾法制备,设计了一套静止悬垂水滴合成气体水合物高压可视化实验装置.介绍了设备的组成和工作原理,......
采用熔融玻璃净化结合循环过热的方法，对过冷Fe75Ni25合金的晶粒细化机制进行了系统的研究，在所获得的过冷度范围内，发现了两次晶粒细......
采用落管无容器处理技术实现Fe-8%Mo和Fe-26%Mo合金的深过冷快速凝固。结果表明：大尺寸Fe-8%Mo合金液滴的凝固组织由α-Fe枝晶晶粒......
采用熔融玻璃净化和循环过热方法实现Ni-15％Cu（摩尔分数）合金的深过冷。采用再辉后自然冷却和水淬两种方式研究凝固冷却对凝固组织和......
采用熔融玻璃净化技术研究了三元 Fe35Cu35Si30合金的液相分离与枝晶生长特征。实验获得的最大过冷度为328 K （0.24TL）。结果表明，合......
采用循环过热与熔融玻璃净化相结合的方法使K4169高温合金获得了14~232 K过冷度。采用透射电子显微镜（TEM）、扫描电子显微镜（SEM）和光......
为了探究成分和过冷度对亚共晶Fe-B合金的凝固速率和硬度的影响,文中采用熔融玻璃净化法和高速摄影技术,对比研究了两种成分Fe-B亚......
为了给高洁净钢连铸细晶技术提供相关理论依据,在高温钼丝炉中通过对电解纯铁加金属铝和硅脱氧,获得不同铁液洁净度的试样.利用差......
在深过冷Pd82Si18熔体中发现一种液相调幅状的自组织结构.运用Pringogine的耗散结构理论,分析了在远离平衡态,深过冷熔体产生自组......
深过冷是获得特殊性能亚稳材料的一种非常重要的手段，采用无容器凝固技术可以在较低的冷却速度下实现并保持较长时间熔体的深过冷，使......
采用熔融玻璃净化法使Fe-Co包晶合金实现了深过冷快速凝固。当熔体过冷度较小时，Fe-Co包晶合金的凝固组织为典型的包晶组织。借助电......
