Austenite grain size of plain carbon steel and alloy steel were examined by oxidization and grain boundary etching method.
采用氧化法和晶粒边界腐蚀法对几种不同的碳钢和合金钢的奥氏体晶粒的显示进行了对比试验。
These rocks are lack of foliation and resulted from the brittle fragmentation of mineral grains with rotation of grain fragments accompanied by fractional grain boundary sliding and dilatancy.
这类岩石缺乏面理构造，是由于矿物颗粒的脆性碎裂，旋转以及颗粒边界的磨擦滑动和扩展而造成的。
The results showed that grain boundary width and grain boundary form of the aluminum alloy would change during superplastic deformation.
结果表明，此状态下的铝合金在超塑性变形过程中晶界宽度和形态会发生改变。
Analysis of element distribution shows that the enrichment of si and Cu exists on the grain boundary.
对雾化粉末中各元素分布的分析表明，硅、铜等元素在晶界上有富积现象。
The predicted growth rate of sintering neck and sintering rate for different ratios of grain boundary to surface mobility are consistent with the existing theoretical analysis.
量化计算烧结颈生长率以及在不同晶界和表面迁移率比值时的烧结率，较好地符合理论分析的趋势。
The growth velocity for recrystallized grain is proportional to the driving force of recrystallization, which is determined by the grain boundary energy and dislocation density.
再结晶晶粒的生长速度与再结晶驱动力成正比，再结晶驱动力取决于晶界能和位错密度。
As an attempt of grain boundary control, this method is a new ceramic powder fabrication technology having great significance.
这种技术作为晶界控制的尝试，是一种具有重大意义的新的陶瓷粉体制备技术。
The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
结果表明，沿一次晶晶界的成分偏析对裂纹扩展阻力的降低作用是铸钢中贝壳状断口形成的主要原因。
This paper shows that inheritance phenomenon of coarse austenite grains are due to the boundary segregation of carbide along the prior austenite grain boundary.
研究表明，调质后粗晶奥氏体的遗传现象，是由于沿原奥氏体晶界碳化物偏聚析出的结果。
Elongation of the sample during superplastic deformation has a close relation with grain boundary width.
试样在超塑性变形时产生的伸长率与晶界宽度有密切联系。
The improvement of the PTC characteristics was induced by the more oxide of the grain boundary of the refiner particle size and an increase of the Barium vacancy.
在高温下，由于钡空位的增加、晶粒较细晶界较多和晶界的氧化作用等增加了材料的PTC效应。
The calcite layer and aragonite layers are multi-scale structure , and a small quantity of organic matrix distributes mainly in their grain boundary.
贝壳中的方解石和文石层均呈多级超微结构，微量的有机质在晶界和晶内呈不连续分布。
Kinetic Process of zigzag grain boundary formation (ZGBF) in wrought nickel-base superalloys has been investigated.
本文重点研究镍基变形高温合金中弯曲晶界形成的动力学过程。
In present work, the quantum theory of scatter of grain boundary to solutes has been proposed to explain the solute segregation on moving boundaries.
本文提出，可以用晶界对溶质原子热运动散射的量子理论来解释溶质原子在运动晶界上的偏聚现象。
Experimental results indicate that cavities are formed during superplastic deformation due to the inconsistency of grain boundary sliding.
实验结果表明，孔洞是由于超塑性拉伸变形中品界滑动不协调而引起的。
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.
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。
It is evident that the effects of strain-induced recrystallization on grain refining and on high-angle grain boundary fraction increasing affect greatly the superplastic properties of the alloy.
研究指出，应变诱发再结晶对细化晶粒和提高大角度晶界分数的作用明显地影响合金的超塑性能。
The stable eutectic carbides with complex morphologyprevent coalescence of grain boundary voids and therefore prolong tertiary creep stage and rupture time.
在晶界上形成形态复杂稳定的碳化物能阻止空洞的连接，从而延长了蠕变第三阶段，增加了断裂时间。
The dependence of grain boundary on conductivity in NTC polycrystalline oxide semiconductor was discussed.
主要讨论NTC多晶氧化物半导体中晶界对电导的影响。
The recrystallization nucleation by bulge of high Angle boundary is promoted by a large mount of particle present in the vicinity of grain boundary.
实验结果还表明晶界附近存在较多的粒子促进已存大角度晶界凸出的再结晶形核。
The CFO reacts with the excess GD present in the grain boundary of GDC to form a third phase. It was found that this new phase could also serve as an excellent oxygen ionic conductor.
CFO与钆掺杂氧化铈(GDC)晶界处多余的钆发生反应形成了第三种相成分，我们发现这种新相可以作为一种很好的氧离子导电体。
When the recrystallization completes, most of grain boundary is high Angle grain boundary.
当再结晶过程完成时，绝大部分晶界为大角度晶界。
Diffusion of oxygen in the bonding coating and substrate is mainly grain-boundary diffusion. Grain-boundary diffusion coefficient is far greater than intragrain diffusion.
氧在粘结底层和基体中的扩散是以晶界扩散为主，晶界扩散系数远远大于晶内的扩散系数。
Results show that the contents of intergranular oxygen and total grain boundary phase as well as the density of sintered samples have maximum values with increasing the holding time.
研究发现，由于晶界相中的氧含量随保温时间的延长先增加然后明显降低，导致烧结体中晶界相的总量和致密化程度随保温时间的增加有一最大值。
An overview of the recent progress in the theoretical study of relationship between grain-boundary segregation and brittle fracture is provided.
综述和简要评价了晶界偏聚和材料脆性断裂之间关系的理论研究进展情况。
Finally, the characteristics of grain boundary electron barrier were described properly with superimposed barrier model.
最后，本文采用叠加势垒模型对晶界电子势垒的特性进行了很好的描述。
Meanwhile, the tip of precipitates along grain boundary becomes obtuse, the alloying elements are depleted in the region near the grain boundary and the stress corrosion resistance is bettered.
同时，晶界沉淀物的端部由尖锐变得圆钝，晶界临近区域中的合金元素贫化，使材料的应力腐蚀抗力提高。
Themicrostructure of bonded zone consist of upper bainite and grain boundary ferrite.
接合部组织由晶界铁素体及晶内上贝氏体组成。
Themicrostructure of bonded zone consist of upper bainite and grain boundary ferrite.
接合部组织由晶界铁素体及晶内上贝氏体组成。
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