The age hardening characteristic of Cu Ni Si Cr Fe alloy has been investigated in this paper.
因而研究铜在钢中的时效强化、沉淀规律具有重要意义。
The high-Cr cast iron which is modified by 0.8% V-Fe is obtained by centrifugal casting and high cr iron microstructure and performance are discussed.
采用0.8%钒铁变质后的高铬铸铁，进行电磁离心铸造浇铸，研究高铬铸铁组织和力学性能变化。
The content of valuable metal, such as Ni, Cr, and fe in residual liquors can be doubled after evaporation treatment. This will be in favor of the effective use.
蒸酸后残液中的镍、铬、铁等有价金属元素含量可提高一倍以上，为其综合利用奠定了基础。
In the determination of Cr, Ni, cu and Mn in alloy steel samples by flame AAS, the precise results are difficult to obtain because of the matrix-element fe interference.
火焰原子吸收法(即aas法)测量钢样中铬、镍、铜、锰的含量，由于基体中大量存在铁元素的干扰。
The amorphous Fe Cr alloy coatings were obtained by controlling the composition of bath operation conditions.
本实验通过控制镀液组成和操作条件获得了非晶态铁-铬合金镀层。
It was very difficult for high cr cast Fe hollow ball valve in investment casting due to its internal hollow and full close as well as high crack susceptibility.
高铬铸铁空心球阀的精密铸造难度较大，球阀内部必须空心、全封闭，同时高铬铸铁的裂纹敏感性极强。
Fe Cr alloy coatings were obtained by controlling the composition of bath operation conditions.
本实验通过控制镀液组成和操作条件获得了非晶态铁-铬合金镀层。
The reasons for this phenomenon and the influence of the sulfide scale demixing on the sulfidation process of Fe-Cr alloys have been discussed.
文中讨论了这种现象的原因以及硫化层分层对铁铬合金硫化行为的影响。
By using chromium containing sludge as sinter ore, not only chromium pollution of environment was solved, but also resources of Fe and Cr in the sludge were recovered.
将含铬污泥配入烧结原料进行烧结不仅消除了铬污染，而且还可以回收其中的铁、铬资源。
The results of the empirical electron theory of Fe-Cr bcc disordered solid solutions are reported.
本文用经验电子理论对铬铁体心立方结构无序固溶体进行了分析。
Using electron microscopy and X-ray diffraction techniques, the structure changes of Fe-Cr-Al alloy being used at low temperature for a long time were investigated.
应用电子显微镜、X射线衍射技术，对低温长期使用的铁铬铝电热合金进行分析。
The possibility of reduction of rare-earth oxides to metals by aluminum in Fe-Cr-Al alloys as well as by aluminum, calcium, silicon and titanium has been studied from the view point of thermodynamics.
从热力学分析了用铝、钙、硅、钛及铁铬铝中的铝还原稀土氧化物成稀土金属进入合金的可能性。
The cyclic oxidation life of Fe-Cr-Al alloy is thus significantly increased by optimum yttrium addition.
因此，钇可以大幅度提高铁铬铝电热合金循环氧化寿命。
When producing the rare earths Fe-Cr-Al alloy by electroslag remelting method, the optimum quantity of rare earths added to three phase lining electroslag furnace is 0.5%.
电渣双联法生产稀土铁铬铝合金时，稀土在三相有衬电渣炉中的最佳加入量为0.5%。
Objective: To explore the relationship between poor vision of children and the content of Zn, Fe, Cr, Cu in their hair.
目的：探讨学龄儿童头发锌、铁、铬、铜含量与视力低下的相关性。
Objective: to explore the mechanical properties of laser welds of Fe-Cr-Mo magnetizable alloy and cobalt-chromium alloy so as to give reference for clinical work.
目的：测试激光焊接铁铬钼软磁合金与钴铬合金的机械性能，为临床应用提供参考。
The content of Cr, Mn, Zn, Cu, Fe, Mg, ca in the cancer tissue and its peripheral tissue from 38 cases with large intestine carcinoma was determined by atomic absorption spectrometer.
用原子吸收光谱法测定了38例大肠癌组织及其边缘组织中铬、锰、锌、铁、镁、钙、铜的含量。
An extremely brittle Fe-Cr phase that can form at elevated temperatures in austenitic and ferritic stainless steels.
奥氏体和铁酸盐不锈钢在高温下形成的非常易碎的铁-铬相位。
The influence of the glycine concentration during electrodepositing Fe-Cr alloy and the effect of glycine on electrodeposition were studied.
研究不同浓度甘氨酸对电沉积铁铬合金过程的影响，分析了甘氨酸在电沉积过程中的作用。
Results indicated that plasma surface metallurgical coating of Fe-Cr-Ni-B-Si had well wettability, and metallurgical bonding was obtained between coating and substrate.
结果表明，等离子表面冶金合金化涂层对基材具有良好的润湿性，基材表面熔化区的形成使得涂层与基材实现了完全的冶金结合。
For the flash, a very common phenomenon in Cr-Fe alloy argon-oxygen decarburization refining process, here the splash-prediction method is proposed based on binary tree SVM (BT-SVM).
针对铬铁合金氩氧精炼过程中时常发生的喷溅现象，提出一种基于BT - SVM的喷溅预测方法。
During the initial stage of oxidation, Cr decreased Fe content in the oxide scale, by which the selective oxidation of Al was promoted.
铬降低了氧化膜内的铁含量，提高了初期氧化膜的保护性，从而促进选择性氧化铝膜的形成。
The Fe-Cr-Ni alloy lined composite pipes have been produced by the SHS centrifugal process and the corrosion resistance of the Fe-Cr-Ni alloy have been studied.
利用SHS—离心法制备铁-铬-镍合金内衬复合钢管，系统研究内衬层的耐蚀性能。
The bipolar plates comprise an alloy comprising Fe and Cr.
双极板包含含有铁和铬的合金。
The paper includes two parts, and the focal point of this part is the Fe-Cr-Al, Fe-Cr-Si andnoncrystalline Fe alloy.
全文共分两部分，下半部分主要介绍在铁铬铝系合金、铁铬硅基系合金和非晶态铁基系合金特性研究方面的进步。
It USES the plasma emission spectrometry to determine Fe, Ca, Mg, Cr, Mn and Cu in LaB6 in the scope of the elements: 0.
采用等离子发射光谱法测定六硼化镧中铁、钙、镁、铬、锰、铜，各元素测定范围：0。
It USES the plasma emission spectrometry to determine Fe, Ca, Mg, Cr, Mn and Cu in LaB6 in the scope of the elements: 0.
采用等离子发射光谱法测定六硼化镧中铁、钙、镁、铬、锰、铜，各元素测定范围：0。
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