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alloying process     
相关语句
  合金化过程
     Structure change of Mg_(70)Al_(20)Ca_(10) alloy during mechanical alloying process
     Mg_(70)Al_(20)Ca_(10)合金机械合金化过程中的结构变化
短句来源
     Investigation of Mechanical Alloying Process of Fe_(75)Si_(25) and the Stability of the Product
     Fe_(75)Si_(25)机械合金化过程及其产物稳定性的研究
短句来源
     Study of Mechanical Alloying Process of MoSi2
     MoSi_2机械合金化过程的研究
短句来源
     The structural transformation of Cu-Al-TiO 2-B 2O 3 mixed powders during mechanical alloying process was investigated by XRD, SEM and differential thermal analysis (DTA).
     利用XRD ,SEM和DTA等方法分析了Cu Al B2 O3 TiO2 粉末在机械合金化过程中的结构变化。
短句来源
     MAGNETIC PROPERLIES AND STRUCTURE OF A MIXTURE OF α-Fe and Fe_3N DURING MECHANICAL ALLOYING PROCESS
     机械合金化过程中α-Fe与Fe_3N混合粉末的结构和磁性
短句来源
更多       
  合金化
     Structure change of Mg_(70)Al_(20)Ca_(10) alloy during mechanical alloying process
     Mg_(70)Al_(20)Ca_(10)合金机械合金化过程中的结构变化
短句来源
     During the mechanical alloying process,Mo(W)solid solution,Si solving in Mo(W) and WSi_2/MoSi_2 formation is ordinal discovered.
     机械合金化合成稀土-WSi2/MoSi2复合材料粉末过程中,Mo、W、Si相遵循Mo(W)固溶体、Si固溶于Mo(W)、WSi2/MoSi2相的形成规律;
短句来源
     Structure and Magnetic Properties of Fe_(60)Ni_(20)C_(20) Alloying Powder During Mechanical Alloying Process
     机械合金化Fe_(60)Ni_(20)C_(20)合金粉末的结构和磁性能研究
短句来源
     Investigation of Mechanical Alloying Process of Fe_(75)Si_(25) and the Stability of the Product
     Fe_(75)Si_(25)机械合金化过程及其产物稳定性的研究
短句来源
     Study of Mechanical Alloying Process of MoSi2
     MoSi_2机械合金化过程的研究
短句来源
更多       
  合金化工艺
     Development of Nitrogen Alloying Process for Refining Stainless Steel in AOD Vessel
     AOD炉冶炼含氮不锈钢氮合金化工艺开发
短句来源
     Alloying Process and Properties of Laser-Radiated Chromized Steel
     激光辐照镀铬钢合金化工艺与性能研究
短句来源
     Nitrogen alloying process was set up by theories of nitrogen dissolved and degassed in stainless steel refined in AOD.
     介绍了AOD炉运用氮气在不锈钢中溶解与脱除理论所开发的氮合金化工艺
短句来源
     The effect of alloying process on appearance, microstructure and phase of alloying coating was investigated by SEM, EDS, X-ray diffraction, etc.
     借助扫描电镜 (SEM) ,能谱仪 (EDS) ,X射线等方法研究了合金化工艺对合金化层的成型、显微组织及物相组成的影响规律。
短句来源
     The mechanism of Ti in steel and factors of Ti wire-feeding are analyzed. The Ti wire-feeding alloying process of refining ladle in Shougang Group is designed. The experimental result shows the mechnical properties of 20CrMnTi steel can meet the demands of national standard, the xenolith rate of Ti rises by 10% and the production cost is reduced.
     综述了20CrMnTi钢Ti含量控制和钢包喂Ti线技术,分析了钛在钢中的作用机理、钢包喂钛线的影响因素,设计出首钢精炼钢包喂Ti线合金化工艺,经工业试验证明:该工艺生产的20CrMnTi钢各项力学性能满足国标要求,提高收得率10%,降低了生产成本,取得了良好效果。
短句来源
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  合金化方法
     The paper has described the preparation of Ni_xMo_(100-x). (X= 80, 70, 62, 55, and 40)alloy using mechanical alloying process and studied the change of powder structure during the process of ball milling by using X-ray diffraction.
     本文采用机械合金化方法制备了Ni_xMo_(1OO-x)(X=80,70,62,55,40)合金,并采用X射线衍射研究了球磨过程中粉末结构的变化。
短句来源
     Sb-based alloys CoFe3Sb12 and FeSb2 have been prepared by vacuum melting and mechanical alloying process, respectively.
     采用高温熔炼方法后机械球磨和机械合金化方法分别制备了CoFe_3Sb_(12)和FeSb_2合金粉末,并对其电化学嵌锂性能进行了研究。
短句来源
     Study on the Preparation of Fe-Si System Nanocrystallines by Mechanical Alloying Process
     机械合金化方法制备Fe-Si纳米晶粒子的研究
短句来源
     The phase changes of MoSi 2 in ball milling process have been measured by X ray. The effects of different ball to powder weight ratio and milling medium on mechanical alloying process of MoSi 2 have been investigated.
     通过X射线衍射手段测定了Mo和Si粉在球磨过程中相的变化 ,讨论了不同球料比和球磨介质对机械合金化方法合成MoSi2 相的影响。
短句来源
     In this paper fcc-Fe50Cu50 alloys were prepared by mechanical alloying of elemental Fe and Cu powder blends. The alloying process was studied by x-ray diffraction. The fcc lattice Parameter,grain size and micro-strain as a function of milling time were calculated.
     本文用机械合金化方法制备了Fe(50)Cu(50)合金,采用XRD研究了合金化过程.计算了晶格常数、晶粒尺寸及微观应变随球磨时间的变化.对Fe-Cu合金的形成进行了动力学分析.
短句来源
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      alloying process
    Nanosized Cu6Sn5 dispersoids were incorporated into Sn and Ag powders and milled together to form Sn-3Ag-0.5Cu composite solders by a mechanical alloying process.
          
    To prevent oxide growth during high temperature exposure, a Au-Si alloying process in a N2/H2 reducing gas ambient was investigated.
          
    The mechanical alloying process is a new method for producing composite metal powders with controlled microstructures.
          
    Fatigue crack growth behavior has been examined in a particulate titanium diboride (TiB2)-reinforced iron-based composite that had been produced via a mechanical alloying process.
          
    The mechanical alloying process, which occurs during ball milling of elemental Ni and Cr powders, as well as the changes of microstructure, which occur during milling and extrusion, were characterized by X-ray diffraction (XRD) techniques.
          
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    This paper refers to a study on the process and principle of mechanical alloying of an ODS nickel-base superalloy. A satisfactory results have been received by the process method using Cr-Ni-Al-Ti-Zr-B masteralloy in place of the current complex methods using various master alloys for mechanical alloying and an uniform dispersion of precipitated particles γ and Y2O3 throughout the resultant structure has been finally obtained. Mechanical alloying process is a high energy dry milling technique of various...

    This paper refers to a study on the process and principle of mechanical alloying of an ODS nickel-base superalloy. A satisfactory results have been received by the process method using Cr-Ni-Al-Ti-Zr-B masteralloy in place of the current complex methods using various master alloys for mechanical alloying and an uniform dispersion of precipitated particles γ and Y2O3 throughout the resultant structure has been finally obtained. Mechanical alloying process is a high energy dry milling technique of various raw powders in a special high intensity grinding ball charge. The result of this "ultra-blending" technique is a "mechanical solid solution", the constituents of which are unresolvable except using electron microscopy. Composition segregation still exists especially in microareas of "mechanical solid solution", which can be eliminated by improving the mechanical alloying process, hot extrusion and heat treatment at high temperature. The technical parameters of mechanical alloying in alloy studied with less raw metal powders were also analyzed and discussed.

    本文对一种氧化物弥散强化镍基高温合金的机械合金化工艺、过程及原理进行了研究。研究表明,用Cr-Ni-Al-Ti-Zr-B中间合金来代替现行的、采用多种中间合金的选配方案,可以同样获得机械合金化的效果,并能最终实现γ′沉淀相及Y_2O_3弥散相在同一合金中的均匀分布。机械合金化是在保护气氛下将各种原始粉末在高能球磨机中反复冷焊-破碎过程,以获得含有弥散质点的机械固溶体粉末。X光和扫描电镜分析表明,在“机械固溶体”中各种元素已基本合金化,同时也存在一定的微区成分偏离,但可以通过改进合金化工艺及热挤压和热处理来消除。本文也对影响机械合金化的因素进行了分析。

    An inverse proportionality between the specific contact resistance ρ_c of n-type GaAs and its carrier concentration ND has been shown by a lot of experimental facts. In this paper, a comment is made on the various viewpoints about this phenomenon in the literatures and their shortages are pointed out as well. According to the band structure of ohmic contact, a new model, assuming that ?_c consists of two parts (ρ_c_2 and ρ_C_2), is put forward. ρC_1 occurs between the contact metal and its underlying highly...

    An inverse proportionality between the specific contact resistance ρ_c of n-type GaAs and its carrier concentration ND has been shown by a lot of experimental facts. In this paper, a comment is made on the various viewpoints about this phenomenon in the literatures and their shortages are pointed out as well. According to the band structure of ohmic contact, a new model, assuming that ?_c consists of two parts (ρ_c_2 and ρ_C_2), is put forward. ρC_1 occurs between the contact metal and its underlying highly doped semiconductor layer (NDc) after alloying. ρ_c_2 is brought about by a barrier appeared due to the concentration difference between the NDc and the active layer ND. If the alloying process is optimized and thus the NDc is very high, then ρC_1 is very small and ρC_2 gives the main contribution to ρc. In this case an inverse proportionality between ρc and N_Dcan be found, if N_D < Nc (Nc is the effective state density). When ND > Nc, ρC_2 can be neglected due to the disappearance of the barrier. In this case, ρc is determined by ρ_c_1, which should depend only on N_Dc. Based on the above description, a theoretical deduction was carried out and the result not only can explain the experimental data of n-type GaAs ohmic contact very well, but also the experimental facts of p-type Si ohmic contact presented in the literatures. We believe that this model can also be extended to the case of other III-V compound semiconductors, such as p-type GaAs and P-type InP etc.

    n型GaAs欧姆接触的比接触电阻ρ_c与有源层浓度N_D有反比关系,这已为很多实验事实所证明。文献中对这一现象有各种解释。本文对文献中的各种解释模型进行了分析,指出不足之处。提出ρ_c应由两部分ρ_(c_1)和ρ_(c_2)组成。ρ_(c_1)是合金与其下在合金化后形成的高掺杂层间的比接触电阻。此外,在这高掺杂层与原来有源层间有载流子浓度差,因而形成一个势垒φ_2,它带入ρ_(c_2)。当合金化良好,高掺杂层浓度N_(Dc)很高,因而ρ_(c_1)很小。这时ρ_(c_2)是ρ_c的主要组成部分。只是在这种情况下,即当N_D小于有效态密度N_c时,ρ_c与N_D才有反比关系。如N_D>N_c,由于φ_2的消失而ρ_(c_2)可忽略,ρ_c由ρ_(c_1)决定。这时ρ_c将决定于N_(Dc),而与N_D无关。所得ρ_(c_1)与ρ_(c_2)的计算式不但能很好解释n型GaAs欧姆接触的实验结果,而且也解释了文献中p-Si的欧姆接触实验结果。认为所述模型也对p型GaAs,p型InP和其他Ⅲ-V族化合物等适用,并结合文献中的实验数据进行了讨论。

    In this paper the method and theory on prparating RE intermediate alloys by electrolysis from the ionized melt are introduced:(1) the cathodic alloying process and its velocity;(2) thermodynamics of the alloying process;(3) the cuteent efficiency of the cathodic alloying process;(4) the indispensable conditions for cathodic alloying.Besides, the preparation of intermediate alloys Nd-Fe and Cu-R by molten salt electrolysis is described as on example in the paper.

    本文介绍了从离子熔体中电解制取稀土金属中间合金的方法和理论:阴极合金化过程及速度,合金化过程的热力学,合金化阴极过程的电流效率,以及为使合金化顺利进行所必须创造的条件。列举了熔盐电解法在制取Nd-Fe和Cu-R等中间合金中应用的实例。

     
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