查询词典 alloying

The synergistic effect of Cu and Mn is listed as follows:(1) On improving the structure of rust layer, addition of Cu and Mn can reduce cracks and pores in rust layer;(2) On altering the composition of rust, it can increase the amount of Fe3O4 and γ-FeOOH, while decrease that of β-FeOOH;(3) On the chemical state of alloying elements and selectivity of rust layer, it mainly convert the anion selectivity to canoed selectivity;(4) On the electrochemical aspect, it can decrease the anode current density and increase the corrosion potential of steel.

Cu、Mn的协同作用主要体现在以下几个方面：在改善锈层结构方面，主要是减少锈层中的裂纹与孔洞，提高锈层与基体的结合强度；在改变锈层组成方面，增加Fe3O4和γ-FeOOH的含量，降低β-FeOOH的含量；在元素化学状态与离子选择性方面，促使锈层由阴离子选择性转变为阳离子选择性，抑制Cl-的渗透；在电化学方面，大幅度降低阳极电流密度，提高钢基体的自腐蚀电位。

The effects of carbonates on the alloying and sintering processes of Fe-Si powder blends were studied.

本文研究了碳酸化合物对Fe-Si混合粉末压坯合金化和烧结过程的影响。

According to the microalloying and strengthening and toughening principles of steel,a theoretical calculation method and optimum alloying design to determine titanium content in carbonizing steel were proposed.

根据钢铁材料的微合金化原理和强韧化原理，对广泛使用的含钛渗碳钢的钛含量进行了理论计算分析和优化设计，结果表明，适当降低钛含量，不影响其在渗碳过程中阻止奥氏体晶粒长大的作用，但可有效地减少或消除含钛渗碳钢中的液析氮化钛，从而提高钢材的力学性能。

The results shown that the β-Zr's forming in the electronic beam alloying cumbered the diffusing of oxygen, and it improved the corrosion resistance of zirconium alloys. After the Nb ion implanted in Zr-4, ZrO2 and NbN were formed, at the range of 1×10^17 to 3×10^17g/cm^2, with the dose increasing, the capability of corrosion resistance was improved.

结果发现：电子束合金化后形成的β-Zr相阻碍了氧的扩散，提高了合金耐蚀能力；Nb离子注入合金后，注入层中生成了ZrO2和NbN，当注入剂量在1×10^17~3×10^17个／平方分米范围内时，随着注入剂量的增加，耐腐蚀能力增强。

The decarbonizing layer has striking influence on surface alloying.

脱碳后渗金属，渗层厚度达80μm；直接渗金属，渗层厚度仅15μm。

Nitrogen alloying process was set up by theories of nitrogen dissolved and degassed in stainless steel refined in AOD.

李永中，赵利荣，AOD炉冶炼含氮不锈钢氮合金化工艺开发

After compared the densities of states and the charge distribution of MgH2 with and without titanium addition, it is found that the improvement of dehydrogenating properties of MgH2 caused by titanium alloying originates from the weakened bonding between magnesium and hydrogen, and the increasing of the valence electrons at Fermi level and decreasing of the HOMO-LUMO gap near Fermi level.

电子态密度与电子密度的进一步分析发现：合金化体系解氢能力增强的主要原因在于Mg—H之间的成键作用较弱，以及Ti诱导费米能级 E F处电子密度 N的增加和 E F附近HOMO-LUMO能隙Δ E H-L的变窄甚至消失。

The hot corrosion of alloy M41 is controlled by acidic fluxing induced by refractory alloying elements, and has a short initiation stage.

用氧化物在酸性熔融中的溶解和析出机制可以较好地解释M41合金的热腐蚀现象。

He sintering of Ti/Al -Al_2O_3 powder in nm scale on SPS is composed of those moments: originally pressing period, exhausting and intenerated period, Al's consumption period,Al_2Ti's creation period, the main alloying and consolidation period and homogenization period.

i/Al-Al_2O_3系纳米级别的粉体在SPS上的烧结过程中，主要分为初始加压阶段、排气与软化阶段、Al消耗阶段、Al_2Ti生成阶段、主要合金反应与烧结阶段和均匀化阶段。

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。