断口分析表明：接头均断在界面附近。
The result of fracture analyzing shows that: All joints are broken near by the interface.
由压缩断口分析可知，基体为韧性断裂。
On the basis of analysis of SEM fractographies, matrix fracture is ductile.
扫描电镜断口分析确认，是腐蚀疲劳所致。
This is confirmed by SEM that it is caused by corrosion fatigue.
提出的金属拉伸试样断口分析方法是可行的。
It is put forward that the analysis method of fracture surface of metallic tension test specimen is available.
对断裂的摩托车发动机连杆进行宏观、金相及断口分析。
Analysis on metallography, macro and fracture appearance were carried out on broken link in motorbike engine.
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。
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.
从钎缝断口分析也证明钎缝中靠近不锈钢一侧是接头最薄弱的位置。
Joint failure analysis showed that the weakest occurred at the place near the stainless steel.
断口分析表明，合金低周疲劳断口的主要特征是平行的条纹及韧窝。
The chief character of fracture is fatigue striation and dimple.
分析包括结构强度分析、宏观断口分析、金相分析和扫描电镜分析等。
The failure analysis consisted of a strength analysis, a macro-fracture surface analysis, a metallurgical microscope and scanning electron microscope analysis.
根据有限元计算、断口分析和实测数据对万向接轴断裂的原因进行分析。
Based on finite element method, break analysis and the measured data, the paper analyzes the breakage reasons of universal joint.
断口分析表明，随着测试温度的提高，韧窝逐渐变小，呈脆性断裂特征。
The dimples of composites fracture gradually decreases, exhibits brittle fracture, as the testing temperature increases.
通过金相及电镜断口分析，确定箱体失效系铸造缺陷和几何截面差过大所致。
Failure of cast aluminium alloy box was analysed by metallographic and fractographic analysis, and cast defect and variation of cross section thickness were identified as main causes of failure.
对焊接接头进行了拉伸强度测试、断口分析、金相组织分析、显微硬度分析。
Tensile testing, fracture analysis, microstructure analysis, hardness test were carried out on the welded joint.
合金的断口分析结果表明，由于产生了塑性枝晶相，因此该合金具有较高塑性。
The fractography reveals that the alloy has high ductility because the dendritic phases produce in the alloy.
通过受力分析、宏观断口分析和微观分析表明，零件的设计和化学成分符合要求；
Through mechanic analysis, macrofractgraphic analysis and microscopic analysis, it shows that the design of the component and chemical composition meet the requirements.
采用声发射技术监测填充聚四氟乙烯的拉伸损伤过程，结合扫描电镜进行断口分析。
This paper dealt with tensile damage of the reinforced PTFE through detecting by acoustic emission technique and fracture analysis with scanning electron microscope.
对淬火开裂的S45 C钢零件进行了化学成分、金相组织、断口分析及硬度检测。
The chemical composition, microstructure, fracture morphology and hardness of cracked S45C steel parts were tested and analyzed.
试样的微观断口分析显示了在高温应变疲劳试验中同时存在疲劳、蠕变和氧化损伤。
The results show that fatigue, creep and oxidation damage always develops simultaneously during low cycle fatigue at high temperature.
对在低循环疲劳试验过程中破裂的某型机低压涡轮盘组件的残骸进行了材质和断口分析。
The materials and fracture surfaces of a low pressure turbine disk assembly that was broken during LCF testing were examined. The fracture of the LP turbine disk was resulted from low cycle fatigue.
论述了分形几何的方法及在断口分析中的应用，提出了该领域存在的问题及应努力的方向。
The fractal geometry and its application in fracture analysis are discussed in this paper. Problems existing in this area and possible approaches to the problems are also put forward.
采用扫描电镜断口分析、微区能谱分析等方法研究了261汽轮机中汽缸大型铸件开裂问题。
In this paper a macro-cracking in the medium casing which is a heavy section casting of 261 turbogenerator was investigated by SEM, EDAX and others.
断口分析表明所研究的试件均为疲劳断裂，裂纹源位于焊瘤趾部或焊瘤内部靠近轨腰表面处。
The fracture analyses revealed that the fractures are caused by fatigue, and the cracks initiated from the inclusions and voids at the toe of the fin for the gas-pressure we…
采用宏观断口分析、化学成分分析及金相检验等方法，对发动机排气门杆断裂原因进行了分析。
By means of macroscopic analysis, chemical composition analysis and microstructure examination, the cracking reason of engine exhaust valve stem has been studied.
通过对最近的一次断裂拉杆现场调查和宏观断口分析，发现断裂发生在拉杆的补焊焊缝熔合线附近。
Based on the fracture site investigation and macro-rod fracture analysis, the welding rod fracture occurred in the vicinity of the weld fusion line.
对回收的样品进行了断口分析和金相分析，从宏微观角度分析了无钴合金在不同应变率下的断裂机制。
By the fracture analysis and metallographic analysis, we obtained the spall fracture mechanism at different strain rate.
并结合断口分析，探讨了钨合金在冲击作用下发生断裂的微观特征与韧脆转化间的关系及其物理本质。
Microscopic features of dynamic fracture of tungsten alloys under shock loading, as well as their relationship with the ductility_brittleness transition were discussed.
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。
In this paper, the chemical contents, microstructure, inclusion, grain size and fracture analysis of the second grade gas turbine blade were investigated.
采用扫描电镜进行断口分析，结果表明，零件内弯处外表面上的冲压伤痕是导致其早期疲劳断裂的主要原因。
The fracture surface was inspected by SEM. The results showed that the stamping damage on the surface around the inside bend was the main factor to cause the early fracture.
通过化学成分分析、力学性能测试、金相检验以及断口分析等方法对SKD61钢压铸模具开裂原因进行分析。
The cracking causes of the die casting mould of SKD61 steel were analyzed by chemical composition analysis, mechanical property testing, microstructure examination and fracture analysis.
通过化学成分分析、力学性能测试、金相检验以及断口分析等方法对SKD61钢压铸模具开裂原因进行分析。
The cracking causes of the die casting mould of SKD61 steel were analyzed by chemical composition analysis, mechanical property testing, microstructure examination and fracture analysis.
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