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合金化过程
相关语句
  alloying process
    Study of Mechanical Alloying Process of MoSi2
    MoSi_2机械合金化过程的研究
短句来源
    Z]Mechanical alloying process of MoSi2 has been studied by XRay, SEM, TEM. It shows that the process may be divided into four stage stages:(1) initial stage of activation;
    通过XRay衍射分析、扫描电镜(SEM)和透射电镜(TEM)观察研究了MoSi2的机械合金化过程,指出MoSi2机械合金化过程可分为四个阶段:(1)初期活化性阶段;
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
    With the increases of content of rare earth,the alloying process is delayed.
    且随着稀土含量的增加,合金化过程延迟.
短句来源
    The effects of the alloying elements Co, Cr added to substitute for the Al element on the alloying process, reaction mechanism and products of mechanicalrvNiAlalloying were studied systematically for the first time.
    首次系统研究了合金元素Co、Cr分别替代Al元素加入后对NiAl机械合金化过程、反应机理及球磨终产物的影响。
短句来源
更多       
  alloying process
    Study of Mechanical Alloying Process of MoSi2
    MoSi_2机械合金化过程的研究
短句来源
    Z]Mechanical alloying process of MoSi2 has been studied by XRay, SEM, TEM. It shows that the process may be divided into four stage stages:(1) initial stage of activation;
    通过XRay衍射分析、扫描电镜(SEM)和透射电镜(TEM)观察研究了MoSi2的机械合金化过程,指出MoSi2机械合金化过程可分为四个阶段:(1)初期活化性阶段;
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
    With the increases of content of rare earth,the alloying process is delayed.
    且随着稀土含量的增加,合金化过程延迟.
短句来源
    The effects of the alloying elements Co, Cr added to substitute for the Al element on the alloying process, reaction mechanism and products of mechanicalrvNiAlalloying were studied systematically for the first time.
    首次系统研究了合金元素Co、Cr分别替代Al元素加入后对NiAl机械合金化过程、反应机理及球磨终产物的影响。
短句来源
更多       
  “合金化过程”译为未确定词的双语例句
    The Solid Phase Transformation of Ti-Al Powder Mixture during Mechanical Alloying
    Ti-Al混合物粉末在机械合金化过程中的固态相变
短句来源
    Investigation on the Solid-State Transformation of Ti-Al Mixed Powder During Mechanical Alloying
    Ti-Al混合粉末在机械合金化过程的固态相变研究
短句来源
    X-ray diffraction and positron annihilation study on crystalline process of Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9 amorphous alloy
    Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9非晶合金化过程的X射线
短句来源
    COMBUSTION REACTION OF Ni_(20)Ti_(50)C_(30) DURING MECHANICAL ALLOYING
    Ni_(20)Ti_(50)C_(30)机械合金化过程中的爆炸反应
短句来源
    Structure Variation and Preparation of FeTi Nanocrystalline Intermetallic Compound by Mechanical Alloying of FeTi and FeTiMn Elemental Powder
    Ti-Fe二元系在机械合金化过程中的结构转变及纳米晶TiFe储氢合金的制备
短句来源
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  alloying process
The intermetallic compound Nd-Fe-Ti-N has been successfully synthesized by a mechanical alloying process.
      
The parameters involved in current models of the mechanical alloying process do not suffice to explain the differences in transformation rates observed here.
      
Toward a Quantitative Understanding of the Mechanical Alloying Process
      
Nanocrystalline Fe25Ni75 powders were prepared by the mechanical alloying process.
      
The samples were prepared by mechanical alloying process, and the average crystal size was determined by X-ray diffraction.
      
更多          
  alloying process
The intermetallic compound Nd-Fe-Ti-N has been successfully synthesized by a mechanical alloying process.
      
The parameters involved in current models of the mechanical alloying process do not suffice to explain the differences in transformation rates observed here.
      
Toward a Quantitative Understanding of the Mechanical Alloying Process
      
Nanocrystalline Fe25Ni75 powders were prepared by the mechanical alloying process.
      
The samples were prepared by mechanical alloying process, and the average crystal size was determined by X-ray diffraction.
      
更多          


The electrochemically alloying on Ni surface with Ta and Nb was carried out In molten LiF-NaF-K_2TaF_7 or LiF-NaF-K_2NbF_7 at temperatures between 850 and 1050℃. In both cases only TaNi_3 and NbNi_3 stable phases are detected in the bulk of the layer. The intermetallic compounds of Ta-Ni binary system, including Ta_2Ni, TaNi, TaNi_2 and TaNi_3 have been identified and the Gibbs energy of formation of Ta-Ni compounds have been calculated. It is shown that the growth of the surface alloying layer follows a parabolic...

The electrochemically alloying on Ni surface with Ta and Nb was carried out In molten LiF-NaF-K_2TaF_7 or LiF-NaF-K_2NbF_7 at temperatures between 850 and 1050℃. In both cases only TaNi_3 and NbNi_3 stable phases are detected in the bulk of the layer. The intermetallic compounds of Ta-Ni binary system, including Ta_2Ni, TaNi, TaNi_2 and TaNi_3 have been identified and the Gibbs energy of formation of Ta-Ni compounds have been calculated. It is shown that the growth of the surface alloying layer follows a parabolic law versus the alloying time. The kinetic parameters of the intermetallic diffusion of Ta-Ni and Nb-Ni systems, including the dimensionless parameters which depends on the solid compositions at the boundary of the alloy layer and the intermetallic diffusion coefficients D have been estimated by combination of electrochemical measurements and diffusion equation. The following equations are confirmed: x~2=Kt and α=(K/D)~(1/2) where x is the thickness of the surface layer and K is the constant.

在850—1050℃含有Ta或Nb离子的氟化物熔盐中,用电化学表面合金化的方法制备了Ta-Ni和Nb-Ni二元合金,分析表明合金层的成分是均匀的TaNi_3和NbNi_3化合物.利用恒电流间隙滴定技术(Galvanostatic Intermittent Titration Technique)证实了Ta-Ni二元系存在Ta_2Ni,TaNi,TaNi_2和TaNi_3四种化合物,测定了其生成电位和自由能;Nb-Ni二元系仅生成、NbNi和NbNi_3二种化合物.在熔盐电化学表面合金化的过程中,表面合金层的厚度与时间呈抛物线关系.测定了Ta-Ni和Nb-Ni合金中Ta和Nb的扩散系数,并建立了扩散系数随温度变化的Arrhenius方程

Amorphous binary Cu-Ti and Ni-Ti powders could be produced by mechanical alloying of elemen- tal powders in a high-energy ball mill, and the process parameters used were presented. X-ray diffrac- tion (XRD) was used to follow the progress of the mechanical alloying. The crystallization behavior of amorphous powders was measured by XRD at high temperature up to 800℃ and differential ther- mal calorimetry (DTA). It was found that the ball-to-powder weight ratio should be limited and 10: 1 was favourable in this...

Amorphous binary Cu-Ti and Ni-Ti powders could be produced by mechanical alloying of elemen- tal powders in a high-energy ball mill, and the process parameters used were presented. X-ray diffrac- tion (XRD) was used to follow the progress of the mechanical alloying. The crystallization behavior of amorphous powders was measured by XRD at high temperature up to 800℃ and differential ther- mal calorimetry (DTA). It was found that the ball-to-powder weight ratio should be limited and 10: 1 was favourable in this study, and that a small part of layered crystalline phase which might be re- maining during processing was possible to be transformed to amorphous phase by subsequent heat treat- ment below crystallization temperature T_x, and the T_x of Cu_(43)Ti_(57) and Ni_(45)Ti_(55) amorphous powders were about 450℃ and 500℃ respectively. The free energy curves of the metastable and equilibrim phases at 300℃ for binary Cu-Ti system were calculated and a schematic illustration based on the mode of diffusion couples was proposed to explain the amorphization process produced during milling.

用自制的高能球磨机将Cu-Ti和Ni-Ti二元系的纯金属粉末混合物制成了非晶粉末,确定了用机械合金化制取非晶含金粉末的一般工艺条件。用X射线衍射(XRD)方法研究了机械合金化时的非晶化过程。通过高温XRD和热差分析(DTA)方法检测了非晶粉末的晶化行为。实验发现,球料比应加以限制,在我们的实验条件下10:1是较适当的,机械合金化过程可能保存的少量层状结晶相通过随后在低于晶化温度T_X下的加热可能转化成非晶相。Cu_(43)Ti_(57)非晶粉末的T_X约等于450℃,Ni_(45)Ti_(55)约等于500℃。计算了Cu-Ti二元系在300℃时亚稳相和平衡相的自由能曲线,并根据扩散偶的模型讨论和解释了机械合金化的非晶化过程。

The amorphizing transformation of Al--Y--Ni system by mechanical alloying was investigated in both thermodynamic and kinetic aspects. The amorphous powder of Al--rich composition Al_(8o)Y_(15)Ni_5 was formed after 70h milling. The process of the amorphization was monitored by X--ray diffraction. The depen-dence of the amorphization on the milling intensity was also discussed. The result shows that over milling with extra-high intensity has an unfavourable effect on amorphization of the system.

本文用热力学和动力学分析了Al—Y—Ni合金系在机械合金化过程中实现非晶转变的能力。用机械合金化方法成功地获得了Al—Y—Ni非晶合金粉末,其非晶属性由X射线衍射和热分析实验得到证实。并研究了球磨强度对Al—Y—Ni合金系球磨非晶转变的影响,发现强度过高不利于非晶转变。

 
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