By the theory of metallographic analysis and SEM, it is a new means to appraise the metal disjunction of identity of judicature evidence.
利用金相分析理论，结合扫描电子显微镜，对司法物证中金属分物的同一性鉴定，是一种简便、快速、准确的新方法。
The optimal technological parameter was obtained by laser cladding experiment and metallographic structure analysis.
通过熔覆试验和金相组织分析，获得了最佳工艺参数。
This paper has described and analyzed the reason of the damaged bearing by means of chemical analysis, the determination of the hardness as well as the metallographic analysis.
本文介绍采用通过化学成分分析、硬度测定及金相组织检测等手段，对轴承损坏原因进行分析的情况。
The analysis of automobile engine crankshaft was conducted by macroscopic examination, fracture analysis, chemical composition analysis, metallographic examination and mechanical properties test.
通过宏观分析、断口分析、化学成分检验、金相检验和力学性能检测等方法，对汽车发动机曲轴断裂原因进行了分析。
The failure of the spindle half-coupling on the bloomer has been analysed by many methods, such as chemical analysis, mechanical property analysis and metallographic analysis.
利用化学分析、力学性能分析及金相分析等手段，对初轧机接轴半联轴节失效原因进行了分析。
The welded joints were completed by the X-ray test, mechanical properties tests and metallographic analysis.
焊后对焊接接头进行了射线检测、力学性能测试、接头金相组织分析。
Fracture tooth of gear shaft in well drilling pump was analysed by chemical analysis, mechanical testing metallographic examination macro and microfractography.
采用化学成分分析、力学性能测定、金相检验以及断口宏、微观分析等方法，对钻井泵齿轮轴断齿进行了分析。
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.
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。
By the fracture analysis and metallographic analysis, we obtained the spall fracture mechanism at different strain rate.
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。
The present paper describes the failure analysis of roller -coupling by testing the optical, metallographic and mechanical properties, offering you the fracture reasons.
本文介绍了利用光学金相、力学性能测试方法对轧辊联轴节进行了失效分析并提出了断裂原因。
The hair lines of 45 steel driving axle when quenching and tempering was analysed by heat etching, chemical analysis and metallographic.
本文采用热酸浸蚀试验，化学成份分析和金相分析等手段，对45钢轴所出现的发纹进行分析。
The effects of thermomechanical treatment on the structures and properties of 7a04 aluminum alloy were studied by mechanical tensile test, metallographic and TEM analysis.
采用力学性能测试、金相显微分析和TEM等方法。研究了形变热处理工艺对7a04铝合金的组织和性能的影响。
The fracture reason of 45 steel bar during cold drawing was analyzed by chemical inspection, metallographic examination, scanning electron fractograph and electron probe analysis.
采用化学成分分析、金相分析、断口扫描电镜及电子探针分析等手段，对4 5钢棒材冷拔断裂的原因进行了分析研究。
Failure analysis of parietal cracking in scavenging pump made of die casting aluminium alloy was carried out by means of metallographic examination, SEM analysis and so on.
借助金相显微镜、扫描电镜等分析手段，对压铸铝合金清洗泵腔壁断裂失效的原因进行了分析。
Purity steel containing La was investigated by means of metallographic analysis and transmission electron microscopy (JEM2010).
采用金相法和JEM2010电镜研究了含镧高纯钢的相变。
The key influential factors on microstructure and properties of the Al alloy components were determined by orthogonal testing and metallographic analysis.
利用正交试验和金相分析的方法，确定了主要影响因素。
The reason that caused quenching cracks of the die was investigated by means of metallographic examination, chemical analysis and hardness measurement.
采用光学显微镜、成分分析和硬度测试等方法对淬裂的模具钢进行了检测与分析，对该模具钢的开裂原因进行了探讨。
The reason of the Weld Joint Cracking on high frequency welding pipe was investigated by using macroscopic observation, metallographic technology, fracture analysis and EBSD technology.
本文通过使用宏观观察、金相分析、断口分析和电子背散射衍射（EBSD）等分析手段对高频焊管焊后弯管开裂的原因进行了分析。
ABSTRACT: Cracks on the disc spring parts and raw materials, using metallographic examination, chemical analysis, hardness testing, scanning electron microscopy by means of a comprehensive analysis.
摘要：对碟形弹簧裂纹件和原材料，采用金相检验、化学分析、硬度试验、扫描电镜等手段进行综合分析。
In this paper, the strengthening mechanism of TZM alloy was investigated. The alloy was processed, heat treated and examined by metallographic observations, phase analysis and electron probe.
本研究工作用加工、热处理、金相观察、相分析和电子探针等方法，研究了TZM合金的强化机制。
In this paper, the strengthening mechanism of TZM alloy was investigated. The alloy was processed, heat treated and examined by metallographic observations, phase analysis and electron probe.
本研究工作用加工、热处理、金相观察、相分析和电子探针等方法，研究了TZM合金的强化机制。
应用推荐