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.
二次浸锌得到的锌晶粒比一次浸锌更细小、均匀和致密,对基体覆盖能力好。
Finer, more uniform and denser zinc crystals were attained by secondary zinc coating with better covering capacity.
分析了热模拟变形过程中的非均匀应变对奥氏体动态再结晶及晶粒尺寸的影响。
The effect of uneven distribution of strain during compression on dynamic recrystallization and grain size of austenite was analyzed.
加热速度仅影响到等轴晶粒的均匀性;
The heating rate only has influence on the uniformity of the crystal dimension.
从金相图可看出,低压烧结试样中的WC晶粒细小、均匀;
The metallographic figure showed that the WC grains were fine and uniform.
温变形后组织的力学性能高于退火变形组织的原因是晶粒的细化和纳米碳化物的均匀分布。
The mechanical property of m is higher than that of annealing structure after warm compression, probably because of the fine ferrite grain with uniformly distributed nano-sized carbide particles.
同时,实验研究了预沉积时间对金刚石晶粒尺寸均匀性的影响。
At the same time, the infection of pre-depositing time on crystal size has been investigated.
主要技术路线是高洁净度、高均匀性、微合盒化、超细晶粒及组织。
The characters of new steels are high cleanliness, high homogeneity, ultra-fine grained and micro alloyed.
薄板坯连铸连轧的产品特点是晶粒细小、强度高、钢质纯净、性能均匀,适宜生产各种高强度钢板。
The characteristics of products from CSP process are small grain, high strength, clean steel, even properties. The process is suitable to produce high strength steel plate.
SEM对试样微观形貌的研究表明,晶粒大小不均匀是这种材料的微观特征。
Research of SEM indicates that the heterogeneity of grain size is the typical microstructure of the materials.
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.
结果表明,改变铜液流动方式能够细化晶粒,提高凝固组织的均匀性。
The results reveal that the change of flow ways of liquid copper can evidently refine the grain size and improve the distributed uniformity of solidified structure.
随着氧化硼含量的增加,晶粒尺寸均匀长大、介电常数和介电损耗都增加;
With the increasing of dopant content, grains grew up uniformly, and dielectric constant and loss increased.
实验表明,加热温度和保温时间是影响晶粒尺寸和均匀性两个重要的因素。
The results show that heating temperature and holding time are two important factors affecting the grain size and uniformity.
温度相对均匀使得游离的晶粒得以保存下来,抑制了晶粒在某个方向上的优先生长,从而抑制了树枝晶的形成。
The dissociative grains were saved and the priority growth at one direction was restrained because of the relative uniform temperature field, consequently the nondendritic structure was formed.
另一方面也有利于再结晶晶粒的均匀长大,从而有利于再结晶软化。
On the other side, it was in favor of the homogeneous growth of the recrystallization grains and the recrystallization softening effect.
结果发现:稀土显著细化了半固态铝合金的球形晶粒组织,并提高了球形晶粒的圆整度和均匀性。
The experimental result shows that re can refine the globular grains of semisolid Al-alloy remarkably, improve the roundness and uniformity of globular grains.
结果表明:所得到的纳米晶粒度均匀、结晶完好,属于立方萤石结构。
The results show that the prepared samples have uniform crystallinity and fine crystalline, with a cubic fluorite structure.
当激励电流提高到20A时,气孔数量急剧减少,焊缝晶粒细小均匀,颗粒状增强相弥散分布;
When the excitation current increases to 20A, the number of pores sharply decreases, the grains are fine and uniform, and the particle reinforced phases are uniformly distributed in the weld.
介绍了一种六角晶系铁氧体轴比及晶粒均匀性的控制方法,并对烧结磁体取向度的提高作了讨论。
In this paper, a control method of axis ratio and grain distribution of hexagonal ferrite is introduced, and improvement of sintered magnet orientation is discussed.
镀镍层SEM照片显示,镀镍层晶粒尺寸大小均匀,各晶粒间结合紧密,孔隙率低,耐腐蚀能力强。
The SEM photo shows that the nickel deposit has even crystal size, good adhesion, low porosity and strong corrosion resistance.
随着保温时间的增加,异常晶粒长大所造成的晶粒不均匀程度逐渐降低。
With the increase of holding time during heating, grains tend to be uniform.
中间退火后晶粒细小,脱碳退火后晶粒细小均匀。
Grain size is small after intermediate annealing. Small and homogeneous grains are obtained after decarburizing annealing.
调质处理前焊缝和热影响区中晶粒尺寸分布较为均匀,而调质处理后主要以小尺寸晶粒为主。
Before QT treatment, grain size distributions in weldment and matrix are relatively homogenous, while after QT treatment the small grains are preponderant.
WC晶粒度的分散性与原始W颗粒度的均匀性有关,对于粗W粉,其颗粒完整性对WC的晶粒度有影响;
The scatter of WC grain fineness is referred to the fineness homogeneity of raw material W particle and the fineness of grain is influenced by the surface perfectness for thick W pattiel- es.
高温小变形时容易发生不完全再结晶,造成晶粒粗大且不均匀,在随后的轧制过程中很难消除。
Small deformation in high temperature is easy to cause incomplete recrystallization and bulky and uneven grain. It is hard to eliminate them in subsequent rolling process.
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.
与完全氢爆相比,选择氢爆后的晶粒较粗大,且较均匀,但细小晶粒较少。
Compared with the grains of complete hydrogen decrepitation, the grains of selective hydrogen decrepitation are relatively larger and more uniform, but small grains are fewer.
晶粒群运动易于诱发变形的不均匀。
Heterogeneous deformation can be brought out by this kind of flow.
晶粒群运动易于诱发变形的不均匀。
Heterogeneous deformation can be brought out by this kind of flow.
应用推荐