柱状晶
- 网络columnar crystal;columnar grains
![柱状晶](../cache/1414719.jpg)
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研究发现,当CAS加入量为0.6wt%时,能够得到晶粒发育完全的柱状晶,长径比达到8:1,相对密度97.2%。
It was found that the grains grew to a columnar crystal as the addition content of CAS was 0.6 wt % .
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SEM及AFM观察表明,涂层表面的小颗粒为柱状晶的上表面,涂层表面的粗糙度随着靶基距的升高而变小。
The little grain on the coating surface was determined to be the upper surface of columnar crystal by SEM and AFM , and the roughness of the coating surface diminished with increasing distance between the target and the substrate .
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柱状晶Al在冷轧过程中微观组织演变的定量表征&Ⅰ宏观分裂
Microstructural evolution of columnar grain al during cold rolling ⅰ . marcoscopic subdivision
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Mg膜具有典型的柱状晶结构,择优取向生长趋势明显;
The as deposited Mg film exhibits a preferred orientation and a typical columnar crystalline structure .
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柱状晶内,Cu,Fe,Cr的含量均沿晶粒生长方向增加,但偏析均不明显;
In columnar grains , segregation of Cu , Fe , and Cr is slight .
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长颗粒(柱状晶)Si3N4陶瓷的研究及进展
Progress research of elongated ( rod - like ) Si_3N_4 ceramics
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柱状晶Ni在冷轧过程中晶粒取向的演变及模拟
Experimental observation and modelling of the Orientation Evolution of individual grains in columnar grain Ni during cold rolling
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研究结果表明,堆焊金属呈粗大柱状晶组织形态,其相结构为α-Fe(Al)。
The experimental results show that the surfacing metal consists of phase of α - Fe ( Al ) coarse columnar grain .
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进一步提高真空度,Ti晶粒更为明显,膜层的截面呈柱状晶结构。
The facet grains appeared on the film surface and the columnar structure was seen at cross - section of the film .
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保温温度及抽拉速率相同时,Ti-45A1-8Nb合金柱状晶大小随着B含量的增加而降低,晶粒细化作用较为明显,但片层间距与B含量关系不明显。
At the same heat preservation temperature and the same pulling velocity , the size of columnar grain decrease with the increasing elements B , but the lamellar spacing does not change .
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电解质涂层的SEM分析表明,涂层呈现出典型的柱状晶结构,在柱状晶间隙处存在微米级的孔隙。
SEM analysis demonstrated that electrolyte coating exhibited a characteristic columnar structure . In gaps between the columns , there were many pores with the magnitude of micrometers .
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利用倾斜沉积技术可制备具有各种形状的柱状晶结构,比如之字形、V形,螺旋形等等。
Actually , Glancing Angle Deposition has been used to prepare films with different shapes of columns , such as zigzag shape , V-shape , helix and so on .
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同时本文还提出了适合铸锭凝固过程的柱状晶向等轴晶转变(CET)判据。
A columnar-to-equiaxed transition ( CET ) criterion is developed for the case of solidification of ingots .
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采用热轧、热锻和热挤压三种方法对铸态Fe3Al基合金进行开坯,发现开坯后Fe3Al铸态组织中粗大柱状晶被破碎,晶界网状析出物消除;
The cast Fe_3 Al-based alloys were cogged by hot-rolling , forging and extruding .
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结果表明,多晶ZAO薄膜呈柱状晶并具有(002)面择优取向,c轴晶格常数大于0.52000nm;
It was revealed that the polycrystalline film is ( 002 ) preferred texture and columnar structure , and the c axis is larger than 0.52000 nm .
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在CSP的不锈钢铸坯结构中,应主要以较细密的柱状晶构成,而较难有中心等轴晶区的出现。
The structure of stainless steel gotten by CSP technics is mainly the slim columnar dendrite and rarely has center equiaxed dendrite .
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结果表明,(Ti,Al)N为面心立方结构,其组织呈细柱状晶,晶粒平均尺寸小于0.1μm。
The results show that the face centred cubic structure and fine columnar crystal microstructure of ( Ti , Al ) N phase are detected with an average grain size of less than 0.1 μ m.
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柱状晶Cu-Al-Ni形状记忆合金的性能
Properties of Cu-Al-Ni Shape Memory Alloy with Columnar Grain Structure
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原子力显微镜的形貌分析表明这一现象可归因于Ti-Ni合金薄膜晶化过程中,柱状晶核的生长。
AFM morphology analysis indicated that such phenomena could be ascribed to the growth of columnar grains .
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MgO对溶质拖拽的作用,会影响柱状晶的生长发育,但有利于陶瓷烧结过程中的致密化。
MgO showed a solute-drag function , which affected the growth of columnar crystals , but was beneficial to the densification of the ceramic in the sintering process .
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柱状晶向等轴晶转变(CET)是在一定的凝固过程中必须控制的一种显微组织转变。
The columnar to equiaxed transition ( CET ) is a kind of microstructural transformation in certain solidification , which should be controlled .
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SEM分析结果表明,合成的Ca-αSiAlON发育成柱状晶,长径比在3~10之间。
SEM result indicates that the synthesized Ca - α - SiAlON crystals were observed in elongated columnar in morphology with length / diameter ratios ranging from 3 to 10 .
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在研究的功率范围内,100W下制备的Au薄膜柱状晶细小;在研究的衬底温度范围内,300℃时Au膜结晶最好。
The most compact Au film was deposited under 100W in the power range under research and under 300 ℃ in the substrate temperature range under research .
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应用MonteCarlo方法模拟了单向凝固的组织形成过程。该方法能够模拟出单向凝固条件下柱状晶的竞争生长,而且模拟结果与实际组织具有一定的相似性。
Monte Carlo method can simulate structure formation process of unidirectional solidification , demonstrating the competitive growth of column-shaped crystals in unidirectional solidification , and the simulation result is definitely similar to the actual structure .
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结果表明,蒸镀态-γTiAl基合金薄板由γ相、α2相和τ相组成,表面质量良好,内部自然分层,显微组织结构为柱状晶。
The results indicated that the deposited γ - TiAl based alloy sheet was composed of γ,α _2 and τ phase , and the quality of the surface was well .
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结果表明,EB-PVD热障涂层呈明显的柱状晶结构,柱状晶垂直于涂层/基体界面。
It was found that EB-PVD TBCs presented a typical columnar morphological features perpendicular to the substrate / coating interface .
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模拟了其TIG焊熔池中心等轴晶和熔池边缘柱状晶的生长,并模拟了等轴晶与柱状晶竞争生长的形态。
The growth of the equiaxed grain in the center of the pool , the columnar grain in the edge of the pool and even the competitive growth between them are simulated .
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SEM分析表明,Ni-YSZ涂层表现为典型的柱状晶生长模式。
SEM analysis demonstrated that these coating exhibited a typical columnar growth pattern . Between the loose columns , there were many gaps and pores .
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靠近Ti侧的反应层组织形态依次为等轴细晶和Ti(Cu,Al)2相柱状晶,Ti(Cu,Al)2相柱状晶与TiAl母材存在一定的位向关系。
The morphoses of the reaction layer near TiAl side is equiax crystal and columnar crystal of Ti ( Cu , Al ) 2 . There exists orientation relationship between and Ti ( Cu , Al ) 2 and TiAl .
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LC9铝合金在773K热扭转中显微组织由粗大的柱状晶转变为细等轴晶。
The coarse column-like grains of LC9 alloy are changed into fine nearequiaxed oneS during torsion at773K .