directional solidification 中文意思是什麼

directional solidification 解釋
定向凝固
  • directional : adj. 1. 方向的。2. 【無線電】指向的，定向的。
  • solidification : n. 團結；凝固；【化學】固體化（作用）。
  1. 4. under the directional solidification, either sub - or hyper - eutectic alloys, with the increase of growth rate, the lst dendritic arm spacing decreases and 2st dendritic arm spacing is restrained to some extent

    4定向凝固條件下，隨著凝固速率的增加，無論亞共晶合金或過共晶合金，一次枝晶間距減小，二次枝晶生長得到不同程度的抑制。
  2. Directional solidification microstructures of cu - 55sn hypo - peritectic alloy

    亞包晶合金的定向凝固組織研究
  3. Directional solidification and growth of peritectic alloys

    包晶合金的定向凝固與生長
  4. Directional solidification and microstructure selection for ti - al peritectic alloy

    包晶合金定向凝固及組織選擇
  5. Investigation of microstructure of nd - fe - b peritectic alloys under directional solidification

    包晶合金定向凝固組織的研究
  6. Low velocity coupled growth and banded structure of peritectic alloys under directional solidification

    細晶變形鎂合金的研究進展
  7. Microstructure and its scales of cu - 70 sn peritectic alloy under high - temperature gradient directional solidification

    包晶合金高溫度梯度定向凝固的組織及其尺度
  8. Directional solidification of zn - 2. 75 cu alloy and the effect of acrt forced convection

    合金定向凝固組織及對流的影響
  9. Preparation of niobium - based ultrahigh - temperature alloy and selection of crucibles for directional solidification

    基超高溫合金制備及定向凝固用坩堝的選擇
  10. Therefore, in this paper, two directional solidification methods, czochralski method and electron - beam floating zone melting method, were used to obtain such material. the directional solidifition microstructures of si - tasi2 system was performed using neophot - 1, amray - 100b sem and jem - 2000cx tem analysis technique

    本文採用切克拉斯基法（ cz法）和電子束區熔法（ ebfzm ）兩種定向凝固方法制備該共晶自生復合材料；藉助金相技術、電鏡技術、圖象處理技術等多種分析測試手段，考察了si - tasi _ 2共晶定向凝固組織和及其相應的工藝規范。
  11. Phase - field simulations of dendritic growth in aluminum alloy directional solidification

    鋁合金定向凝固過程枝晶生長的相場法模擬
  12. With the background of use in contact cable, this thesis introduces cu - cr alloys as studied subject, and from the two ways of solidified process and solidification mechanics, the structure configuration and the behave of separated - out strengthened elements are systematically study under the process of directional solidification

    本文就是以電車線的應用為背景，採用cu - cr合金作為研究對象，從凝固工藝和凝固機制兩個方面，系統地研究了其在定向凝固工藝下的組織形態及其強化元素的析出行為。
  13. Study progress in phase - field simulation of directional solidification microstructure

    定向凝固微觀組織的相場法模擬研究進展
  14. Some basic material problems in preparing ybco superconductors by directional solidification

    超導體的若干材料學問題
  15. Directional solidified cu - cr in - situ composites have high strength, high electricity but without such problems of interfacial contamination and low stability as in the conventional man - made synthetic composites due to self - driven engender in the process of directional solidification, so this composites are expected to be used as contact cable, which is made for trunk line electrification

    定向凝固cu - cr自生復合材料由於具有高強度、高導電性，同時因其在凝固過程中自動形成而避免了人工復合材料中長期存在的界面污染、穩定性差等不足，因而在電氣化鐵路用電車線材方面有廣闊的應用前景。
  16. On condition of controlling solid - liquid interface preferably and keeping low directional solidification rate, there were particular phenomena in tasi2 fibre development process. generally, it can be divided into three typical steps. the first was star - up period, the second was competition period, the third was stabilization period

    在較好控制固液界面和較低的生長速率定向生長條件下，纖維相tasi _ 2生長過程有其獨特的規律性，通常可以將其生長過程分為啟動、競爭、穩定三個典型階段。
  17. In this paper, an ingot of niobium - niobium silicide based in - situ composites ( rmics ) was prepared by arc melting process, and nb - nb3si / nb5si3 in - situ composites with a uniformly orientated microstructure were produced in a high temperature gradient directional solidification apparatus named electron beam floating zone melting ( ebfzm ). the relationships between the processing parameters and the characteristics of the solidified microstructure have been investigated. the influence of the microstructure on the mechanical properties has been revealed and the rupture mechanism at room temperature has been discussed

    本文採用真空電弧自耗熔煉法制備了鈮?硅基rmics材料的母合金錠，並採用電子束區熔（ ebfzm ）高溫度梯度定向凝固裝置制備了定向效果良好的nb - nb _ 3si nb _ 5si _ 3共晶自生復合材料，並對其定向凝固工藝參數和組織之間的對應規律、組織特性進行了研究，探討了凝固組織對室溫力學性能的影響及其斷裂機制。
  18. In this paper, one high temperature gradient directional solidification apparatus with liquid metal cooling ( lmc ) was used. the technology parameter of preparation for ni, cr, al - tac eutectic in - situ composite was optimized

    本文採用lmc高溫度梯度定向凝固裝置，對ni ， cr ， al - tac共晶自生復合材料進行了深入的研究，優化了該種自生復合材料的制備工藝。
  19. Research and development of rapid directional solidification

    快速定向凝固技術的研究及發展
  20. Numerical simulation of channel segregation in directional solidification

    定向凝固通道偏析的數值模擬
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