The grain fracture of energetic particle bed as a result of dynamic impact and dynamic compression at different temperature was measured by using a high-low pressure launch set.
利用高低压发射装置，测定了含能颗粒床在不同环境温度下动态撞击与动态挤压的破碎程度；
The result indicates that the large grain brittle inclusion in the molten steel is the key factor can lead to brittle fracture.
通过对高碳帘线钢线材断口试样的检验分析，认为钢中大颗粒脆性夹杂物是导致脆断的重要原因。
Intergranular fracture. Fracture of polycrystalline materials by crack propagation along grain boundaries.
多晶材料裂纹沿着晶界扩展而断裂。
Crystalline fining grain can restrain the cleavage fracture.
细化晶粒可抑制脆性断裂。
The damage during hydraulic fracturing mainly included clay swelling and grain migration, built up created by mechanical impurities, the damage of fracture conductivity and so on.
水力压裂过程中存在的损害主要包括粘土膨胀与颗粒运移损害、机械杂质引起堵塞损害、支撑裂缝导流能力的损害等。
A tensile facture fractal model of grain filled polymer composites on the base of the fractal theory was established, and an equitation of the tensile fracture fractal dimension was proposed.
基于分形理论构建了颗粒填充高分子复合材料拉伸断口的分形模型，进而提出了分形维数计算公式。
Fracture analysis by the scanning electron microscope shows that grain growth can be effectively inhibited and product properties highly improved by adding appropriate amount of foreign elements.
扫描电镜断口分析表明：掺杂可以控制晶粒生长，提高材料的性能。
The critical event for cleavage fracture in notched specimens is the propagation of a ferrite grain-sized crack into the matrix, and is independent of specimen sizes and widths.
在缺口试样中，解理断裂的临界事件是铁素体晶粒尺寸的裂纹扩展进入基体，不随试样尺寸和宽度变化。
Because of the smaller grain of X70 pipeline steel, the typical intergranular fracture characteristics have not found.
由于X70管线钢的晶粒很细小，在碳酸盐溶液中的断口并没有呈现典型的晶间断裂冰糖状断口形貌。
The results showed that the metallurgical defects such as inclusions, coarse crystal grains and asymmetry of the grain size were the main reason resulting in fracture of the steel rods during drawing.
结果表明，原材料中存在的夹杂物、晶粒粗大及混晶等冶金质量缺陷是盘条在拉拔过程中发生断裂的主要原因。
The results showed that the grain boundary cohesion become weaker and intergranular fracture became dominant with the increasement of superplastic deformation temperature.
结果表明，变形温度愈高，晶界结合强度愈低，沿晶断裂愈明显，晶界滑动愈易实现；
Cleavage fracture is a typical brittle fracture and also a process consisted of crack producing and spreading, and the mechanism is related to dislocation and crystalline grain.
解理断裂是典型的脆性断裂，解理断裂也是一个裂纹萌生和扩展的过程，其机制与位错和晶粒有关。
The effect of crystal content and grain size of feldspathic porcelain on fracture toughness was discussed in the paper.
本论文重点研究了长石瓷晶相含量和晶粒度对断裂韧性的影响。
In this paper, the chemical contents, microstructure, inclusion, grain size and fracture analysis of the second grade gas turbine blade were investigated.
对燃气轮机二级动叶片失效件进行了化学成分分析、金相组织观察、晶粒度测定、夹杂物检查及断口分析。
An increase in crystal grain size of co-polypropylene probably resulted in a decrease in the specific nonessential work of fracture, which induced less ability in preventing fracture for long time.
共聚聚丙烯的晶粒尺寸较大可能造成其比基本断裂功减小，致使其耐长期破裂行为较差。
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。
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。
The deep and large cavities are formed on fracture surface and grain boundary sliding and intergranular fracture characteristic is obvious on the optimal superplastic deformation condition.
在最佳超塑性条件下，断口中形成了大而深的空洞，晶界滑动和晶间断裂特征明显。
For the same grain size and hardness in the unembrittled conditions, martensite has lower yield strength higher Charpy fracture energy and lower FATT due to finer mean carbide size.
在同样晶粒度和硬度，不添加杂质的条件下，马氏体有较低的屈服强度、较高的冲击断裂功以及较低的塑脆转变温度，这些都由于较细的平均碳化物尺寸引起。
In the analysis of the structural integrity of grain, study on deformation and fracture characteristics was always a very active research subject.
在药柱结构完整性分析中，形变和断裂特性研究一直是十分活跃的研究课题。
The fracture rod has cracks in the microstructure of weld zone, intergranular cracks exists in the coarse grain zone of the weld heat affected zone.
进一步比较了断裂拉杆和已经产生裂纹的拉杆焊缝区的显微组织，发现在焊缝的热影响区粗晶区存在沿晶裂纹。
The fatigue life is seen to depend on the grain size and stress amplitude, based on the nonequilibrium statistical theory of fatigue fracture and the model of interface energy.
在其它参数保持不变的情况下，得出细晶粒多晶体金属的平均疲劳寿命随晶粒尺寸和应力振幅的增加而减小的结论。
The fracture of parallel to grain on air-dry wood texture show brittle fracture, and its surface texture with a fractal structure with random or statistical sense of self-similar.
气干木材的顺纹理断裂则表现出脆性断裂的行为，木材顺纹理断裂表面具有某种随机的或统计意义上的白相似结构而具有分形结构。
It is shown that the zigzag grain boundary may delay the initiation, growth and propagation of crack, as well as may also influence the crack morphology and the fracture mode markedly.
研究表明，弯曲晶界对裂纹的萌生、长大及扩展，对裂纹的形态及断裂方式，都有显著的影响。
The results show that the grain size have a obvious influence on strain-hardening rate and fracture behavior.
结果表明 ，晶粒尺寸对应变硬化率及断裂行为有显著的影响 ；
The results show that the grain size have a obvious influence on strain-hardening rate and fracture behavior.
结果表明 ，晶粒尺寸对应变硬化率及断裂行为有显著的影响 ；
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