| 1. | Analysis on structure and fracture morphology of cast al2o3 al - si alloy composites
合金复合材料的组织与断口形貌分析 |
| 2. | The vickers hardness decreases monotonously from ~ 20gpa ( ai2o3 ) to ~ 14gpa ( 19vol . % ni - fe / al2o3 ) with increasing ni - fe content
并结合表面裂纹扩展和断口形貌，讨论了材料增强增韧的机理。 |
| 3. | The results have indicated that this titanium has a strong ability in superplastic , the fractographics presented big and deep dimple , so the alloy is of high toughness
另外，对tc6钛合金的拉伸断口形貌进行扫描电镜分析。其结果表明，断口形貌呈现大的韧窝，合金显示较高的超塑性潜力。 |
| 4. | Through analysis of the breaking location , shape of breaking section , manufacturing quality and sheave factor of hoisting system , the breaking reason of the drilling wire rope is discussed
通过对钢丝绳断裂部位、断口形貌、制造质量以及游动系统滑轮参数等调查情况进行分析，剖析了钢丝绳断裂产生的原因。 |
| 5. | The influence of a rare earth oxide on the mechanical properties and high temperature strength of high al - zn base alloy was investigated and the microstructure and the fracture morphology was studied by sem
摘要研究了稀土氧化物对高铝锌基合金的力学性能和高温强度的影响，并利用扫描电镜观察了锌铝合金的显微组织及断口形貌。 |
| 6. | Aided by impact experiment and fracture analysis , it finds that the impact power of the steels decreases significantly as the nitrogen content increases from 81 10 ^ ( - 6 ) to 98 10 ^ ( - 6 ) , and the drop is the greatest at - 40 ~ - 60
通过冲击试验性能数据和断口形貌分析发现，当试验钢含氮量从81 10 ^ ( - 6 )增加到98 10 ^ ( - 6 )时，试验钢的冲击功大幅度地下降，在- 40 ~ - 60区间上冲击功下降幅度最大。 |
| 7. | The tensile strength and young ’ s modulus of cf / ep specimens before and after vacuum thermo - cycling were measured by an electrical universal material testing machine . an electron scanning microscope was used to perform the surface morphology and fractography of specimens
真空热循环试验前后cf / ep层合材料的拉伸性能由电子万能材料试验机完成,本文利用扫描电镜观测试样表面形貌和拉伸后的断口形貌。 |
| 8. | The cross - sectional morphologies of the samples were studied by sem before and after the fatigue tests . the effects of electric field characteristics and temperature on fatigue behaviors of the plzt samples were systematically investigated by performing a series of experimental measurements
同时，利用sem观察了疲劳前后试样的断口形貌，并系统地进行了电场特征和温度对plzt试样电疲劳性能影响的实验观测。 |
| 9. | The test shows that the cooling speed affects the first arm - spacing and the second arm - spacing , and concluded that they are decreased , the fracture fractographies are improved , and the mechanical properties , especially the toughness , is obviously increased while the cooling speed increases
摘要试验表明，冷却速度增大，使奥氏体的一次二次枝晶间距缩小，断口形貌改善；并且可使材质的综合力学性能，特别是韧性明显提高。 |
| 10. | The microstructure , structure , composition , phase of joint region , and the microstructure and composition of fracture have been analyzed using the equipment of metallurgical microscope , sem , eds , xrd and binary eutectic phase diagram for the al - cu system and diffusion theory
利用金相显微镜、扫描电镜、能谱仪、 x射线衍射分析仪，结合al - cu二元合金相图及扩散理论，分析了接头区域的形貌、组织、成分、相组成，以及断口形貌、成分。 |
