metallographic

The fracture of a steel rail was analyzed by means of metallographic microscope, SEM and EDS.

摘要用金相显微镜 、 扫描电镜、能谱仪分析了钢轨断裂原因.

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An overall technical examination is presented including metallographic examination and corrosion test between crystals.

并对换热器进行金相检查、晶间腐蚀试验等项目全面技术检验。

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The fine blanking dies of the pawl and the chute used for the seat recliner were firstly introduced in this thesis, and failure analysis has been carried out in view of mechanical calculation, metallographic test, hardness test and SEM.

本文首先针对棘爪、滑槽板两副精冲模具出现断裂的凸模，从力学强度校核、金相试验、硬度试验、断口电镜扫描等进行试验分析。

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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.

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Carry on temperature cycle test on typical components, inspects solder joint crack in different cycle, observe microstructure of solder joint in virtue of metallographic analyse, study solder joint failure mode in temperature cycle and offer basis to improve technology parameter.

针对典型元器件进行温度循环试验，在不同的循环周期检查焊点的开裂情况，并采用金相分析观察焊点的显微组织，分析焊点在温度循环条件下的失效模式，为改进工艺参数提供依据。

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Color metallographic technique is a useful method of phase identification in metal.

彩色金相技术是识别和鉴定金属中不同相的有力手段.

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This paper summarizes the construction principle, resolution power and amplification about the system of compuer-metallographic microscope.

概述了计算机 - 金相显微镜系统的建立原则 、 系统的分辨率和放大倍数.

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The variation of hardness and precipitation behavior during aging at 525 ℃ after relaxation in deformed Nb-bearing microalloyed steel were studied by thermo-simulation test, metallographic analysis, measurement of hardness and TEM.

采用热模拟手段、金相及硬度测量并结合透射电子显微镜观察，研究了简单成分的含Nb微合金钢在热变形弛豫后、525℃时效时硬度变化及析出过程。

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In metallographic sample preparation process, specimens are polished with the polishing process multi-channel essential.

在金相试样制备过程中, 试样的磨光与抛光是多道必不可少的程序.

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Metallographic Specimen Preparation of Tin Alloy

锡合金金相试样的制备

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The microstructure evolvement of bainite under different relaxation time after deformation in austenite for microalloyed steel was studied by applying thermo-simulation test, metallographic analysis, semi-quantitative measurement and PTA technique.

利用热模拟、金相分析结合半定量测量统计及径迹显微照相技术（PTA），研究了微合金钢奥氏体区变形后弛豫不同时间的贝氏体组织演化情况。

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The study on metallographic specimen polishing machine at home and abroad was introduced.

介绍了国内外金相试样抛光机的研究情况,以及各种类型抛光机的性能与特点.

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The pipe is made of steel X20CrMoV121 ( F12). According to stress analysis and metallographic examination results, a concluding evaluation has been obtained and guides for further safe service set up, together with a residual life expectancy estimation.

该管道的材料是X20CrMoV121（F12），通过应力分析、金相组织检查等方法对该管道的性能进行评估，提出了合理的运行安全性指导意见和剩余寿命估算值。

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The change of the polished ceramic tile's surface hasbeen observed using metallographic microscope and SEM.

用金相显微镜、扫描电镜观察抛光砖表面孔隙的变化.

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Treats test samples with the weld heat-simulation and the aging heat-treatment, studies th brittleness in weld superheated area and the service life of repair welded exhaust valves for the diesel locomotive through metallographic analysis and property test.

本文采用焊接热模拟和时效热处理等方法处理试件，通过金相分析和性能试验，研究了内燃机车排气阀焊修后焊接过热区的脆化及其使用寿命问题。

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Control system of large metallographic specimen cutting machine has been designed based on programmable controller PLC.

基于可编程控制器PLC设计了大型金相试样切割机的控制系统.

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Can do a variety of chemical composition analysis, physical performance test and metallographic analysis.

可做多种化学成分分析 、 物理性能试验及金相分析.

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A new algorithm for shadow remedy being used on metallographic picture is introduced.

本文介绍了一种新的针对金相显微图像的阴影校正算法.

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Metallographic method is used to analyze the characterization of surface cracking of the geared.

采用金相分析方法分析了齿座表面裂纹的性质和产生原因.

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The metallographic examination of joint in different welding temperature proves that the joint metal on the side of high-speed steel has a gentle structure slope at the800 ℃.

通过对不同温度接头的金相检验证明：在800℃时高速钢一侧组织梯度较小；

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Metallographic examination of borided 45 steel sample was made by transmission electron microscopy.

用透射电子显微镜对经渗硼的45钢作了观察.

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The fracture of a rail was analyzed by means of metallographic microscope, SEM and EDS.

用金相显微镜 、 描电镜、谱仪分析了钢轨断裂原因.

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A quantitative metallographic analysis system was developed based on the metallographic principle.

基于金相分析的原理,开发出一套适用于半固态合金的定量金相分析系统.

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Application of metallographic testing technique in quartz unit vacuum cold pressure welding technological test

金相检验在石英器件冷压焊工艺试验中的应用

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Experimental techniques such as tensile test, metallographic examination, classical corrosion test and polarization curve measurement were used to study the mechanical properties, microstructure and corrosion resistance of tin brass for condensation tube in power plants.

采用拉伸试验、金相显微分析、经典腐蚀试验方法及阳极极化曲线的测定，研究了电厂用锡黄铜冷凝管的力学性能、组织和耐蚀性能。

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The dynamic mechanics performance about TA-6 of α-Titanium alloy have been investigated by split Hopkinson pressure bar and split Hopkinson tensile bar of reflective type. The microstructure for the 45-degree tensile fracture was examined by Metallographic analysis also.

本文利用分离式的Hopkinson压杆和反射式Hopkinson拉杆对α-钛合金TA6的动态力学性能进行研究，并对拉伸时出现45度断口的现象做了金相分析。

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The CCT curve of the bainite transformation of the Mo bearing and Mo free trial steel has been measured and the metallographic structure of the steels observed by expansion method in a thermo-simulation machine.

在热模拟试验机上采用膨胀法并结合金相组织观察，测定了含钼和不含钼的试验钢贝氏体转变CCT曲线。

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Chemical composition, hardness, microstructure and pitting defect appearance of the failed bearing rolling elements were studied by methods of chemical analysis, hardness testing, scanning electron microscope and metallographic examination.

采用化学分析、硬度测定、扫描电子显微镜检查和金相分析方法，对失效轴承滚动元件的化学成分、硬度、显微组织和滚动道（面）上的点状缺陷的形貌特征进行了分析。

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Then the methods of image segmentation for metallographic analysis are introduced.

针对金相图像分割中存在的问题,提出了两步分割的图像分割方法.

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We tested the hardness, wearing capacity, anti-contact fatigue and high temperature behaviour of the Al_2O_3_p/ Ni multiple brush plating layer which has been prepared, and studied its metallographic structure.

制备了纳米A2O3p/Ni的复合刷镀层，测试了复合刷镀层的硬度、耐磨性、抗接触疲劳性能及高温性能，并分析了复合刷镀层的金相组织。

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