分析了铝型材表面晶粒粗大的原因。
The cause of surface coarse grain of aluminium profile is analyzed.
试验结果表明该设备可以满足超声表面晶粒细化冲击的要求。
The results show that the instrument can reach the demand of ultrasonic peening grain refinement.
对比研究了铸造工艺参数对镍基高温合金叶片表面晶粒度和晶粒均匀度的影响。
Effects of the casting technological factors on the size and uniformity of surface grains of turbine blade castings in ni based superalloy were studied by comparison of experimental results.
借助于高放大倍率的二次复型组织，观察了LF6铝合金超塑变形后的表面晶粒组织。
With the secondary duplicated model structure with high magnification, the surface grain structure of LF6 aluminum alloy superplastically deformed is observed.
结果表明，随着时间延长，温度上升，镀锡层表面晶粒不断增大，粗糙程度也随之增加。
The variation of the surface morphology of the tin coating with time and temperature is also studied.
在此基础上，建立了陶瓷镜面磨削塑性变质层的物理模型，并用微刃切削理论解释了表面晶粒的碎化机理。
Based on these, the physical model of plastic degenerating layer has been established and the fractional mechanism of surface crystal particles has been explained by micro-edge cutting theory.
结果表明，5052铝合金表面晶粒超细化后抗蚀性能提高，其平均腐蚀速率与表面晶粒尺寸呈线性关系。
The results show that the corrosion property of 5052 aluminium alloy with ultrafine-grained surface improves. The average corrosion rate is linearly related to surface grain size.
选用K 18合金和纯金属镍及不同的面层细化料，通过实验对比研究了镍基高温合金叶片表面晶粒细化机理。
Surface grain refinement of turbine blades in Ni based superalloy K18 were studied by comparison of experimental results in different alloys and mold surface materials.
讨论了高能晶界理论、高迁移率晶界理论、表面气氛等对高斯晶粒长大的贡献。
The effects of grain boundaries with high energy or high mobility and surface atmosphere on the growth of Goss grains are discussed.
结果显示，杂质元素的含量偏高和沿晶界的偏析以及不均匀的钨晶粒是造成国产钨靶表面损伤的主要原因。
The results show that high content of impurity elements, segregation along grain boundaries and uneven grain size are main reasons for the surface damage of domestic tungsten targets.
针对先进纳米铜互连技术的要求，研究了脉冲电流密度对铜互连线电阻率、晶粒尺寸和表面粗糙度等性能的影响。
Aiming at the technology demand of advanced copper interconnection, the effect of pulse current density on cu layer properties such as resistance, crystal size and surface roughness were investigated.
晶粒尺寸大小变化与表面粗糙度变化存在对应关系。
The change of grain size have some relationship with the surface roughness.
沉积粒子的扩散和晶粒生长之间的竞争决定了薄膜表面演化。
The competition between the diffusion of deposited particles and grain growth of thin films determines surface evolution of thin films.
试生产的盘条组织性能稳定，脱碳层薄，晶粒细小，夹杂物含量低，表面质量良好。
The trial produced rod is with stable tissue, decarbonization film thin, crystal particle tiny, slag little, and surface quality better.
结果表明，在反向凝固中，锡可以分布于试样的表面，细化晶粒，提高试样的硬度，同时使电阻率升高。
The result show that tin is distributed on the surface of the sample made by reversing solidification, and the grain is fined, the hardness and resistivity are increased.
利用机械合金化过程产生的颗粒细化、晶粒细化、表面活化及储能作用可以达到上述要求。
The above requirement can be attained by the refinement of the granule and the crystalline grain, surface activation and store-energy effect obtained during the process of mechanical alloying.
激光雕刻仿生非光滑表面耐磨性提高的原因是：晶粒超细化，硬度提高，桩钉效应和仿生效应。
The reason for abrasive wear resistance enhancement of bionics smooth surface made by Laser Carving Technology is grain super-refining strengthening, hardening, effect of dowel pin and bionics.
晶粒特性、表面特性、颗粒特性、颗粒群特性和应用特性等五方面构成了稀土粉体性能的评价体系。
The rare earth powder characterization system is constituent of properties of crystal, surface, particle, powder and usage.
晶粒长大、晶界面积减少以及镀层表面生成较厚的、致密的氧化膜是耐蚀性提高的主要原因。
The main cause of better corrosion resistance was due to growth of granules, decrease of grain boundary area, and formation of thick and compact oxidation film on the coating surface.
这种具有晶粒定向结构的BT S极性微晶玻璃，具有较高的机电耦合系数和低的延迟温度系数，在声表面波器件上具有潜在的应用价值。
It shows that BTS polar glass ceramics with grain orientation structure have a potential application in SAW devices for their high SAW coupling coefficient and low temperature coefficient of delay.
实验表明退火后的带材表面光亮度良好，机械性能和晶粒度均匀。
Experimental annealing proved that the strip thus annealed has a bright surface and is uniform in mechanical properties and grain sizes.
为了提高动叶片的抗冷热疲劳和抗机械疲劳的性能，铸件表面需进行晶粒细化。
In order to improve the cold fatigue, hot fatigue and mechanical fatigue resisting performance of the moving blade, grain refinement is required for the casting surface.
与NM2相比，NM1具有较大的比表面和较小的镍镁固溶体晶粒度，还原后的NM1催化剂中镍晶粒也相对较小。
Compared with NM2, NM1 had higher specific surface area and smaller crystallites size of nickel-magnesian solid solution, and after reduction NM1 also had smaller size of nickel crystallites.
纳米晶粒的表面能很大，这导致它的热稳定性不好。
Nanocrystals have low heat stability for its high surface energy.
通过实验发现，加氢催化剂的活性和产物收率与催化剂中铜晶粒大小及表面积有着直接的关系。
Experiments find activity of hydrogenation catalysts and product yields have direct relation with the copper crystalline size and surface area.
指出晶粒表面及内部缺陷等的随机指数分布是出现该效应的主要原因。
Furthermore, the compensation effect could be explained based on assumption of exponential energy distribution function over crystal surface and its inner as well.
晶粒特性、表面特性、颗粒特性、颗粒群特性和应用特性等五方面构成了稀土粉体性能的评价体系。
The rare earth compound powder characterization system comprises properties of crystal, surface, particle, powder and usage.
薄膜的SEM和AFM观测表明样品表面光滑，且呈现出形态完整、分布均匀的晶粒。
SEM and AFM studies show that surface of the C60 film is very flat, arrangement of crystalline grain is even, morphology of C60 crystal is sharp.
结果显示，杂质元素的含量偏高和沿晶界的偏析以及不均匀的钨晶粒是造成国产钨靶表面损伤的主要原因。
The results show that high content of impurity elements, segregation along grain boundaries and uneven grain size are main reasons for the surface damage of domestic tung...
结果显示，杂质元素的含量偏高和沿晶界的偏析以及不均匀的钨晶粒是造成国产钨靶表面损伤的主要原因。
The results show that high content of impurity elements, segregation along grain boundaries and uneven grain size are main reasons for the surface damage of domestic tung...
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