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- It is brittle and breaks with a conchoidal fracture surface. 性脆,具贝壳状断口。
- 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 state of knowledge about fracture surfaces is very meager. 有关断裂表面的知识非常缺乏。
- 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 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.
- 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;
- The fatigue fracture surface of test specimens shows hybrid-fracture characteristics of quasi-cleavage and dimple. 合金中添加Ce后,疲劳裂纹扩展区出现疲劳条纹,疲劳断口呈现出准解理和韧窝断裂的混合特征。
- 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。
- The micro-structure of fracture surface of HAZ is of granular bainite, with characteristics of coarse crystal zone. 热影响区断口表层剖面组织为粒状贝氏体,显示出粗晶区的特征。
- Fuzzy uncertainty texture spectrum (FUTS) is applied for the pattern recognition of fracture surface morphologies. 应用不确定性纹理谱进行金属断口形貌的识别;
- The fracture surface is observed,detected and analyzed by means of macro-detecting,SEM,EDS and metalloscope. 利用金相显微镜、扫描电镜和能谱仪,对分层缺陷严重的部位进行了观察、检测和分析。
- The characterless zone on the fracture is the shear band instead of fracture surface of shear crack. 断口上的无特征区是剪切带,而不是剪切裂纹断口;
- The quantitative calculation method for the parentage of the fibrous fracture surface was studied. 考察了断口纤维断面率的定量计算方法。
- The microstructure of MDF cement and its fracture surface were investigated in detail by SEM/EDAX, STEM et al. 应用SEM/EDAX、STEM等仪器比较详细地研究了MDF水泥及其断口的微观结构。
- Quenching crack deep and long, straight fracture, fracture surface without oxide color. 淬火裂纹深而细长,断口平直,破断面无氧化色。
- The fracture surface of the wires studied by scanning electron microscopy (SEM) shows a suitable interfacial bonding between the fiber and aluminum. 复合丝拉伸断口的扫描电镜(sem)观察可见断面有一定起伏,部分纤维拔出但长度较短,表明纤维与基体具有适当的界面结合。
- The fracture of constant load tests was transgranular SCC mode, whereas the SSRT fracture surface was tough and without SCC fracture characteristics. 但两种方法中渗铝试样的断口形态表现出差异:恒载荷试验为穿晶型SCC断口,而SSRT无SCC断口特征,为韧性断口。
- However, for AISI 316, hydrogen barely changed the fracture surface morphology of notch specimen in comparison with that in air. 然而,对AISI 316而言,和在空气中测试的试片比较起来,氢气几乎没有改变凹槽试片的破断面形态。
- The observations of fracture surface under SEM found that fatigue cracks initiation area exists mostly in surface and in subsurface. 扫描电子显微镜分析发现,疲劳裂纹源的位置主要呈现为表层和次表层两种情况。
- And scanning electron micoscope was employed to analyse the fracture surface of environmental stress cracking of blent LDPE and grafted LDPE. 用红外光谱证明了接枝反应的存在,用电子扫描显微镜分析了共混与接枝后LDPE环境应力开裂的断面形态。