共晶体

gòng jīng tǐ
  • eutectic;eutecticum
共晶体共晶体
共晶体[gòng jīng tǐ]
  1. 强制性对流条件下,合金的共晶体体积分数以及共晶体中的Si粒子的体积分数都较只有自然对流时高。

    With the forced convection the volume fraction of eutectic and the fraction of Si particles in eutectic are higher than that under natural convection .

  2. 结果表明:在固液两相区内共晶体首先重熔,共晶相中的Si相通过向α相中扩散溶解,其团块状α相逐渐演变成球状;

    The results show that the eutectic is remelted first and the Si-phase in eutectic dissolve in a way of diffusion toward α phase which gradually evolve into spheroidal shape in solid-liquid phase zone .

  3. 此外,观察到了共晶体包裹初晶Si生长的过程。

    The growth process of an eutectic wrapping primary silicon was observed .

  4. 含共晶体二元金属熔体作用浓度的计算模型Si对团球状共晶体奥氏体-贝氏体钢中贝氏体相变的影响

    Calculating Models of Mass Action Concentrations of Binary Metallic Melts Involving Eutectic Effect of Si on bainitic transformation of austenite bainite steel with nodular eutectic

  5. 复合材料中的纤维在Al-Si共晶体的共生生长过程中,可触发孪晶,导致纤维附近的共晶硅里变质形态。

    The fiber in the composite can trigger twin during the coupled growth of Al-Si eutectic and lead to the modification of the eutectic silicon near the fiber .

  6. 钇基重稀土合金变质团球γ+(Fe,Mn)3C共晶体增强奥氏体钢基自生复合材料

    In-Situ Austenite Steel Matrix Composites Reinforced by Granular γ + ( Fe , Mn ) _3C Eutectics Prepared with Y-Based Heavy RE Modifier

  7. 与固溶体组成共晶体的硼碳化物主要为具有六方点阵并含有层片状孪晶的(Cr,Fe)7(C,B)3。

    The result also showed that the eutectic boride and carbide of ( Cr , Fe ) 7 ( C , B ) 3 was hexagonal lattice with lamellar and flake twin .

  8. 结果表明:加入Mo的镍基等离子喷焊层组织得到均匀化,共晶体细化,耐滑动磨损性能得到改善。

    The results show that the wear resistance and the microstructure of nickel-base self-fluxing alloy powder plasma arc spray coatings with Mo in it both were improved .

  9. 挤压后的铸件Zn、Al和Cu的偏析比都有所下降,晶间共晶体中Al含量增加,α枝晶内Zn和Cu的含量有所增加。

    Squeeze casting can decrease the segregation ratio of Zn , Al , Cu , and increase the Al content of intercrystal eutectic and the Cu , Zn content of a dendritic .

  10. 由于焊接过程中镁的过热蒸发,导致焊缝相对含Al量升高,共晶体含量增多,从而使焊缝热裂纹倾向增大。

    Due to the super heated vaporization of Mg atom during welding , the Al content and eutectic content in the weld increase , resulting in the increase of hot crack tendency in the weld .

  11. 添加Mg后,合金组织转变为由树枝状初生(α-Al)和枝晶间网状分布共晶体所组成的亚共晶组织,富铁相尺寸显著降低;

    With the addition of Mg , the microstructure changes to hypoeutectic one composed of primary α - Al dendrites and network-like eutectic colonies in the inter-dendrite regions , and the iron-rich phase decreases in size .

  12. 随变形程度的增加,Cu-6%Ag合金原始组织中的Cu基体晶粒、不平衡共晶体及次生相粒子最终演变成细密的纤维结构,合金电阻率上升。

    With increasing the draw ratio , the Cu-rich dendrites , eutectic colonies and Ag precipitates in the as-cast and homogenized Cu-6 % Ag structure develop into the fine filamentary structure and the electrical resistivity increases .

  13. 利用热爆式燃烧合成法成功制备了含有细小棒状金属相共晶体的Al(Cr)2O3-Cr(Mo)陶瓷基复合材料。

    ( Al ( Cr ) _2O_3 ) - Cr ( Mo ) ceramic matrix composites with eutectic mixture of fine rod metal phase were successfully fabricated by means of the thermal explosive combustion synthesis method .

  14. 本文最新研制了一种用锑化铟-铟(InSb-In)共晶体薄膜磁阻制成的准全方位振动传感器。

    A relatively omnidirectional vibration sensor made of InSb-In eutectic film magnetoresistance is introduced .

  15. (Al+Si)共晶体中的共晶领先相Si优先在SiC表面上形核、长大,形成界面Si,并形成大量SiC/Si界面。

    It was discovered that the leading phase Si in the ( Al + Si ) eutectic tends to nucleate and grows preferentially at the SiC surface , thus forming the characteristic interfacial Si , and the SiC / Si interfaces .

  16. InSb-In共晶体薄膜磁阻式齿轮转速传感器

    InSb-In eutectic film magnetoresistive gear velocity sensor

  17. AM60镁合金焊接接头中热裂纹的产生主要与镁合金中存在的低熔点共晶体有关。

    Because of low melting element existing magnesium alloy , hot-crack could be found in welds .

  18. 为了检测微弱电流,设计了一种适用于信号处理电路的InSb-In共晶体磁阻元件(MR)制成的半导体薄膜磁阻型电流传感器(MRCS)。

    A semiconducting magnetoresistive current sensor ( MRCS ) made of a Insb-In eutectic magnetoresistor ( MR ) was designed and used in a signal-processing circuit to detecting weak current .

  19. 次生相界面、共晶体与Cu基体界面及位错对电子散射作用程度的变化导致了合金电阻率在不同变形程度范围内有不同的变化规律。

    The change in the electronic scattering effect of the phase interface between Ag precipitates and Cu grains and the interface between eutectic filamentary bundles and Cu matrix in the alloy against the dislocation resulted in the change in the electrical resistivity of alloy for different strain condition .

  20. 结果表明,高硬度的团球共晶体与韧性奥氏体使EAMC具有优异的强韧性匹配;

    The results show that hard granular eutectic particles and soft austenite matrix contribute to the strengthening / toughness match of EAMC .

  21. 在研究团球γ+(Fe,Mn)3C共晶体增强奥氏体钢基自生复合材料(EAMC)的力学与耐磨性能的基础上,分析了EAMC的强韧化及耐磨机理。

    The performance of granular γ + ( Fe , Mn ) 3C eutectics reinforced austenite steel matrix composites ( EAMC ) was studied , and the strengthening / toughness match and wear resistance were analyzed .

  22. 比较EBFZM和CZ法生长的共晶体纤维相分布发现,前者纤维相分布更均匀,纤维细且长,但取向性没前者好。

    Compared with the fibre distribution by CZ method and EBFZM method , it was discovered that the former was uniformity and slim , the latter was better for alignment .

  23. 设计了一种可以对微变信号进行提取与放大的信号处理电路,它适用于InSb-In共晶体磁阻元件(MR)制成的半导体薄膜型电流传感器(MRCS)。

    A signal processing circuit that may pick up and amplify the weak signals was designed and used in a semiconducting magnetoresistive current sensor ( MRCS ) made by a InSb In eutectic magnetoresistor ( MR ) .

  24. 研究了电磁场对团球γ+(Fe,Mn)3C共晶体增强奥氏体钢基自生复合材料(EAMC)中C、Mn元素的偏析及凝固组织的作用。

    The results presented in this paper make a contribution to investigation of the effects of electromagnetic on the segregation of C and Mn elements and the microstructure of in-situ granular γ + ( Fe , Mn ) _3C eutectics reinforced steel matrix composites ( abbreviated EAMC ) .

  25. 铸造Fe-C-B合金的铸态组织是由树枝状基体和在树枝状基体间分布粗大的、连续的网状硼化物或含硼碳化物共晶体组成。

    The as-cast structure of Fe-C-B alloy consists of dendritic matrix and boride of boron carbide eutectic distributed in the dendritic matrix as a large and continuously net-like shape .

  26. Cr3C2/Co涂层组织主要由未熔Cr3C2,大量杆状和块状的富Cr碳化物及其间的非常细小的枝晶及其共晶体组成,主要组成相为γ-Co,Cr7C3,Cr23C6和未熔Cr3C2颗粒。

    The Cr_3C_2 / Co coating is consisted of undissolved Cr_3C_2 particles , many different shape rich-chromium carbides ( M_7C_3 , M_ 23C_6 ) and very finer dendrite and eutectic structure between the carbides .

  27. 对变质铸态中锰钢进行热力学计算、晶体结构分析,透射电镜与电子探针研究,发现SiO2完全可以作为层片状共生共晶体(共晶两相为奥氏体与合金渗碳体)的非自发核心。

    By calculation of thermodynamics , analysis of crystal structure and study of TEM and eletron probe , it is first discovered that SiO_2 can be acted as one of the heterogeneous nuclei for lamellar intergrowth eutectic ( austenite and cementite ) crystallizing in modified as-cast medium manganese steel .

  28. 结果表明:AZ61镁合金CO2激光焊接接头成形良好,焊缝区域晶粒明显细化,热影响区减小,焊缝区域主要由细小的-αMg相及(α+Al12Mg17)等共晶体组成;

    The results show that the joints with good appearance have been formed . A fine grained weld region is observed and no obvious heat effec-ted zone is found . The weld zone mainly consists of small - α Mg phase ,(α + Al12Mg17 ) and other eutectic phases .

  29. 利用MPX-2000型主轴盘销式磨损实验机和扫描电子显微镜(SEM)研究了相对滑动速度对团球γ+(Fe,Mn)3C共晶体增强奥氏体钢基自生复合材料(EAMC)摩擦学性能的影响。

    The effect of sliding velocity on the friction behaviors of in situ granular 7 + ( Fe , Mn ) 3C eutectics reinforced austenite steel matrix composites ( EAMC ) has been investigated by the pin-on disc dry sliding tests and scanning electron microscopy ( SEM ) observation .

  30. 利用Kohonen自组织特征映射神经网络来判定二元碱金属卤化物体系是否可以形成共晶体,对三个体系(其中一个体系不形成共晶体,两个体系形成共晶体)的预测结果完全正确。

    In this paper , the Kohonen self organizing feature mapping neural network was developed to determine the formation of eutectics in binary alkali halide systems . Three binary alkali halide systems of which one can not form eutectics and the other two can form eutectics were correctly predicted .