查询词典 metallographic

Stress Corrosion Cracking of polythionic acids of 304 SS were investigated by SSRT,SEM and metallographic analysis.

采用慢应变速率拉伸试验、扫描电镜断口分析以及金相显微组织分析等方法对304不锈钢连多硫酸应力腐蚀开裂行为进行了研究。

The observation of the metallographic structure of the cracks and analysis of the corrosion product determines that culprit of the cracking is polythionic acid stress corrosion.

中国石化股份有限公司天津分公司加氢精制高压分离器接管使用8个月后相继发生开裂，经裂纹金相组织形态观察和腐蚀产物成分分析，确定开裂原因系连多硫酸应力腐蚀引起。

Through a series of quenching, tempering, tensile testing, low-temperature impact test and metallographic analysis, we ultimately came to the following conclusions:(1) low-carbon alloyed steel 20CrMn2NiMoV quenching at 870℃ and tempering at 200℃, whose structure contains tempered dislocation lath martensite and few small bainite under mixed, has the best obdurability;(2) Carbon Steel 45CrMn2NiMoV quenching at 850℃ and tempering at 620℃, whose structure is sorbitic, has a performance less than that of low-carbon Alloyed steel, but it can also meet the basic design requirements.(3) Mn can substitute for the role of Ni within limited extent.

通过一系列淬火、回火、拉伸试验、低温冲击试验以及金相分析，最终得出以下主要结论：（1）低碳合金钢20CrMn2NiMoV经870℃淬火+200℃回火，得到回火位错型板条马氏体+少量细小下贝氏体的混合组织，具有最佳的强韧性配合；（2）中碳合金钢45CrMn2NiMoV经850℃淬火+620℃回火，得到回火索氏体组织，综合性能虽然不及低碳合金钢，但也能基本满足设计要求；（3）Mn在一定程度上能够替代Ni的作用，适量的Mn和Ni相互配合可以得到最佳的低温韧性，因此&以Mn代Ni&是低温钢材料研究开发中一条可行的适合我国资源状况的合金化思路。

The anodic behavior of electrolytic nickel anode in nickel sulfamate plating Solution was investigated,using anodic polarization curves,metallographic observation of cross-sections of nickel deposits,Hull Cell tests with solutions with and without Cl-,F-,bending tests with five solutions of different compositions,and sulfur content analysis in nickel deposit with mass spectrometry.

采用极化曲线、金相观察、赫尔槽电镀试验、弯曲试验和质谱分析方法，研究了氨基磺酸盐镀镍的阳极行为，证明了当在氨基磺酸盐镀液中使用电解镍阳极时，其活化峰值电流和镀液组成有很大的相关性，当镀液中不含F-和Cl-时其阳极活化峰值电流小，阳极处于极化状态，或相当大面积处于极化状态，使氨基磺酸根在极化的阳极表面氧化，从而使含硫化合物夹附于镀镍层，形成镀层内应力，并使镀层成为层状结构，并出现半光亮的外观。

Moreover, microstructure of brazed joint with BNi-2 filler metal is studied by means of metallographic microscope, SEM, EDAX and so on.

通过金相分析、扫描电镜和 X射线能谱分析等手段，研究了BNi-2钎料钎焊不锈钢时的接头组织。

The C-curves of the cyanided case of 18CrMnTi and 18CrMnMo steels austeni-tized at 860℃ were determined by metallographic methods.

用金相法测定了18CrMnTi与18CrMnMo钢高温氰化层经860℃奥氏体化后的恒温C-曲线与马氏体开始转变温度M_H，同时也测定了A_1温度。

The phase equilibrium relationship and the equilibrium composition of conjugate phases in Ag--Ti system were determined by means of metallographic microscope and electron probe microanalysis. Especially for the liquid phase the B phase and the intermediated phase.

通过金相观察和电子探针微区分析，对退火处理后的试样进行相分析和成分测定，从而获得了相应温度下的Ag--Ti二元体系的相平衡关系和共轭平衡成分。

I was struck by beautiful trembling blue light , but more, the wreathing patterns resembling floating clouds and water that made up of networks of steel showing many metallographic structures.

我惊讶于寒冰蓝刃的光芒和完美，但更加神折于剑身的精美肌里：无数细密的花纹如云雾缭绕，更如百川流动：急中带缓，一泻千里，直达剑尖。

Based upon the experimental results, including threshold values under static loading,the effects of alternating loading and room temperature creep,as well as metallographic observations of the fractography,it is concluded that notwithstanding stress corrosion or corrosion fatigue in aqua ammoniae,or fatigue in air,the cracks always initiate at the site subject to maximum normal stress(θ=-110°)along the notched surface,and then propagate along the maximum shear stress direction from that site(α=-35°).

由门槛值的测量、交变载荷的作用、室温蠕变的影响、断裂过程的金相观察及断口形貌等结果，可以确认；黄铜不论是在氨水中应力腐蚀或腐蚀疲劳，还是在空气中疲劳，裂纹都从Ⅱ型缺口试样的最大正应力处(0=-110°)萌生，并沿该处的最大剪应力方向(α=-35°)扩展。

In order to explore the influence of the bath composition on Ni-W-P alloy coating structure and properties, to find the right ratio, so as to lay the foundation for follow-up experiments, SEM/EDS, X-ray diffraction, and metallographic analysis and other methods were adopted to study the composition and structure of different chemical deposition of Ni-W-P alloy. And the hardness of different components of the sediment layers plated state and the hardness after heat treatment were measured.

为了探索镀液组分对Ni-W-P合金镀层结构与性能的影响规律，寻求合适的镀液配比，为后续实验莫定基础，采用扫描电镜／包谱、X射线衍射以及金相分析等方法，研究了不同成分和结构的化学沉积Ni-W-P合金层，测量了不同成分沉积层的镀态与热处理后的硬度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。