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- Refining effect of boron on the hypoeutectic Al Si alloys and pure aluminum has been studied with SEM and XRD. 利用DSC,SEM 和X 射线衍射等手段, 分析了硼对纯铝及亚共晶Al?Si 合金的细化作用。
- The modifying elements used in hypoeutectic Al Si alloys,besides Na,there are also Sr,Te,Ba,Sb,K,RE,B,S,etc. 亚共晶铝硅合金的变质元素除钠以外,还有锶、碲、钡、锑、钾、稀土、硼、硫等。其中,应用较多的是含钠和锶的变质剂。
- Based on Al Cu Fe and Al Fe V Si alloys, the Al Fe Cu V Si Ni Ce Zr alloy has been prepared by the optimization design of chemical compositions. 以Al?Cu?Fe 和Al?Fe?V?Si 两个合金系为基础, 对合金成分进行了优化设计, 组成了Al?Fe?Cu?V?Si?Ni?Ce?Zr 合金。
- The ratios of Fe/Ti, (Fe+Mn)/Ti, Al/(Al+Fe+Mn) and U/Th, and Al Fe Mn and Fe Mn (Ni+Co+Cu) diagrams show that the siliceous rocks are the sedimentary rocks of hydrothermal origin. Fe/Ti、(Fe+Mn)/Ti、Al/(Al+Fe+Mn)、U/Th比值及Al?Fe?Mn、Fe?Mn?(Ni+Co+Cu)三角图均表明岩石为热水来源沉积岩。
- Differential Scanning Calorimetry (DSC) was used to study kinetic charateristics of transformation on quasicrystalline phases in a rapidly solidified Al Fe (Cr, Mo) Si alloy. 利用示差扫描量热仪(DSC)分析方法,研究了快凝Al?Fe?(Cr,Mo)?Si合金中准晶相的转变动力学特征。
- A rapid, accurate and economic XRFS method for the analysis of Si Al Fe alloy is described in this paper.The sample powder is directly pressed into discs and used in the analysis. 采用粉末样品直接压片法,通过基体校正等手段,建立了新型铁合金硅铝铁X射线荧光分析方法。
- It is detailed that the densities, microstructures, and mechanical properties of the multi layer spray deposited Al Fe V Si pipe blank after being extruded, spun or rolled. 本文对多层喷射沉积耐热铝合金管坯经过挤压、旋压、轧制后的密度、显微结构及力学性能进行了检测和分析。
- On the basis of analysis of activated silicon and aluminum components,a new smelting process of Si Al Fe alloy by use of coal spoil for replace a part of bauxite was proposed. 通过分析煤矸石的活性硅、铝成分,提出了以煤矸石代替部分铝钒土冶炼硅铝铁合金。
- The effect mechanism of thermal history of the melt on the phase formation of the rapidly solidified Al Fe based alloys and the phenomenon of which the melt kinematic viscosity dur... 有效地解释了熔体热经历对快凝铝铁基合金中相形成的影响机制,以及长期以来不易理解的、加热过程中熔体的运动粘度比冷却过程中熔体的运动粘度为小的现象。
- Al; Fe;化合; Fe 2 O 3 ; Fe 3 O 4 ; FeS 2 。 在高温下,使用还原剂,将铁从铁矿石中还原出来。
- Keywords hypoeutectic Al Si alloy;melt thermal treatment;solidification structure;refinement; 亚共晶铝硅合金;熔体温度处理;凝固组织;细化;
- Al causes operated to bring about the war. 那场战争的起因有几个。
- The concert included works by Mozart et al. 音乐会上演奏莫扎特等人的作品。
- My name is Alexander, "Al" for short. 我叫亚历山大,简称艾尔。,我的名字叫亚历山大,简称“亚尔”。
- A Pueblo people located north-northeast of Santa Fe, New Mexico. 陶斯人一支居住于美国新墨西哥州圣大菲城东北偏北的普埃布洛印地安人中的成员
- Fe,Al etc. metals? Polyfluorinated plastic? Glass?Ceramic?Silicone? 铁,铝等金属?特氟隆塑料?玻璃?陶瓷?硅橡胶?
- Fe pa du ki ad urba. She was going to town. 她(过去)是去(往)城她(过去)正去往城里.
- Fe fu posi ki ad urba. She might go to town. 她将能去往城她可能去城里.
- We sale only goods in al condition. 我们只出售最佳状态的商品。
- Fe nu pa ki ad urba. She has just gone to town. 她现在过去去往城她已经去城里了.