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- The microstructure and tensile fracture surface of the Q235 steel has been investigated by TEM and SEM. 应用TEM和sem观察钢的微观组织结构及拉伸断口。
- The microscopic structure and the tensile fracture surface of annealed samples were investigated by using OM and SEM. 测定了不同退火温度下,钛管抗拉性能,并用SEM观察了拉伸断口形貌。
- Keywords N330 carbon black;filled powdered NR;vulcanizate;mechanical property;tensile fracture surface morphology; 高耐磨炭黑;填充型粉末天然橡胶;硫化;物理机械性能;拉伸断面形貌;
- tensile fracture surface 拉伸断口
- The proportion of W-W and W-M interface detaching on the fracture surface increases as the addition of Y2O3, resulting in the decrease of static tensile strength and elongation. Y2O3粒子降低了钨-钨、钨-黏结相界面结合强度，随着Y2O3质量分数的增加，钨合金静态抗拉强度和延伸率降低；
- It is brittle and breaks with a conchoidal fracture surface. 性脆，具贝壳状断口。
- The fracture surface of the normalized steel 55SiMnMo was observed, under tensile testing device equipped on SEM, to be of ductile dimple feature in the bainite which are composed of austenite and ferrite. 采用扫描电镜拉伸装置,对55SiMnMo钢正火组织进行拉断观察,发现其断口为微坑型延性断口。
- At this point, tensile fracture partially occurred, as evidenced by some apparent necking. 这时，一些明显的颈缩现象表明，发生了局部拉伸断裂。
- The fracture surface traverses matrix as well as fibers and interface. 断裂表面横切过基体、纤维和界面。
- The tensile fracture of FSW appears to be dimple and the fracture mechanism is analyzed through dislocation theory. 断口分析表明,搅拌摩擦焊接头断口为明显的韧窝形貌,并用位错理论解释了微观断裂机制。
- Meanwhile,a useful value for following study on tensile fracture mechanism of UHMWPE/LDPE is given. 对后续研究UHMWPE/LDPE复合材料声发射特性和拉伸破坏机理具有参考价值。
- And then Al_2O_3 /Cu composite were prepared through hot-extruded, the microstructure, tensile fracture and interface were observed and analyzed. 然后采用热挤压法制取了Al_2O_3/Cu复合材料,对其显微组织和拉伸断口及界面进行观察与分析。
- The state of knowledge about fracture surfaces is very meager. 有关断裂表面的知识非常缺乏。
- The problem of tensile fracture convexity could be solved by optimizing heat treatment technology and controlling grade of inclusion in raw materials. 通过调整热处理工艺与控制材料中夹杂物级别可以解决断口不平问题。
- The experiments showed that the tensile fracture strain of such PMMA specimens was nearly ten times of that un-precompressed. 实验结果表明,与未进行预压缩处理的试验片相比,预压缩处理后的试验片的拉伸断裂应变约为前者的10倍。
- SEM observation shows that the typical cavities are obvious in fracture surfaces of tensile samples after superplastic deformation. 利用扫描电镜观察断口发现典型的超塑性空洞形貌特征。
- In this paper, the tensile fracture mechanics model of aramid fiber is discussed, while the mechanical properties of the fiber is simulated based on a nonlinear model. 摘要探讨了芳纶的抗拉伸断裂宏观力学模型，并对纤维的力学性能进行了模拟。
- The adiabatic heating induces the temperature of fracture surface layer to be higher than the liquidus temperature too. 计算表明;断口表面层绝热升温温度依然高于液相线温度.
- In-situ observations of fracture processes in scanning electron microscope were employed to study the tensile fracture behavior of the NEPE solid propellant. 采用原位拉伸扫描电镜技术对NEPE推进剂的单轴拉伸破坏过程进行了研究。
- Fracture surface was flat in macrographic view,but dimpled rupture was observed in micrographic view. 宏观断口都比较平坦，但在微观上均呈现塑断特征；
