Preparation of Nanocrystalline NiAl Compounds and Composites by Mechanical Alloying

机译：机械合金化制备纳米晶NiAl化合物及复合材料

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During the past ten years, mechanical alloying/ball milling has been employed to successfully synthesize nanocrystalline NiAl intermetallic compounds (NiAl, NiAl (Cr,Co,Ti,Fe)) and composites (NiAl-TiC, NiAl-TiB_2, NiAl-HfC, NiAl-HfB_2) in our group, namely, by means of self-sustained reaction. During the mechanical alloying process, an abrupt temperature rise has been observed. The large heat release from the formation of NiAl, as well as HfC, HfB_2, TiC, TiB_2 compounds is suggested to be the driven force of the self-sustained reaction. It is interested to observe that nanocrystalline NiAl exhibits very well microstructure stability during high temperature annealing. The alloying additions can decrease reaction rate and prolong the reaction time. With the increase of alloying additions, supersaturated solid solution even amorphization of NiAl has been formed. The nanocrystalline NiAl compounds show a rise of the compressive strength and the ductility at room temperature compared with that of the cast coarse crystalline compound.

机译：在过去的十年中，机械合金化/球磨已成功用于合成纳米晶NiAl金属间化合物（NiAl，NiAl（Cr，Co，Ti，Fe））和复合材料（NiAl-TiC，NiAl-TiB_2，NiAl-HfC， NiAl-HfB_2），即通过自持反应。在机械合金化过程中，已经观察到温度急剧上升。 NiAl的形成以及HfC，HfB_2，TiC，TiB_2化合物释放的大量热量被认为是自持反应的驱动力。令人感兴趣的是，观察到纳米晶NiAl在高温退火过程中表现出非常好的微观结构稳定性。合金添加会降低反应速率并延长反应时间。随着合金添加量的增加，已形成过饱和固溶体甚至NiAl非晶化。与铸造的粗晶化合物相比，纳米晶NiAl化合物在室温下显示出抗压强度和延展性的提高。

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来源
《Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1; 20041102-05; Beijing(CN)》|2004年|P.749-754|共6页
会议地点 Beijing(CN)
作者
Guo Jianting; Du Xinghao; Zhou Lanzhang;
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作者单位

Superalloys Division, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, P.R.China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
NiAl based alloys; mechanical alloying; nanocrystalline; mechanical properties;

机译：NiAl基合金；机械合金化；纳米晶；机械性能;

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2. Synthesis and microstructure characterization of nanocrystalline NiAl intermetallic compound with molybdenum additions obtained by mechanical alloying [J] . Khajesarvi Ali, Akbari Gholam Hossein Metallurgical Research & Technology . 2017,第6期

机译：用机械合金化获得纳米晶体中金属间化合物的合成和微观结构表征
3. Properties Evaluation and Studying Production Mechanism of Nanocrystalline NiAl Intermetallic Compound by Mechanical Alloying [J] . Khajesarvi Ali, Akbari Golamhossein Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science . 2016,第4期

机译：机械合金化制备纳米晶NiAl金属间化合物的性能评价及机理研究
4. Preparation of Nanocrystalline NiAl Compounds and Composites by Mechanical Alloying [C] . Guo Jianting, Du Xinghao, Zhou Lanzhang Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1 . 2004

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5. The mechanical properties and oxidation behavior of nanocrystalline nickel-aluminum synthesized via shock consolidation of mechanically alloyed powders of nickel and aluminum. [D] . Chen, Tao. 1999

机译：通过对镍和铝的机械合金化粉末进行冲击固结合成的纳米晶镍铝的机械性能和氧化行为。
6. Shift of Creep Mechanism in Nanocrystalline NiAl Alloy [O] . Zhihui Sun, Baoshu Liu, Chenwei He, 2019

机译：纳米晶NiAl合金蠕变机理的转变
7. SYNTHESIS AND CHARACTERIZATION OF MECHANICALLY ALLOYED AND SHOCK- CONSOLIDATED NANOCRYSTALLINE NiAl INTERMETALLIC [O] . T. Chen, J. M. Hampikian, N. N. Thadhani 1999

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8. Microstructure, Plastic Deformation and Mechanical Properties of MechanicallyAlloyed NiAl and NiAl Based Alloys [R] . Dollar, M., Nash, P., Dymek, S., 1991

机译：机械合金化Nial和Nial基合金的组织，塑性变形和力学性能

Preparation of Nanocrystalline NiAl Compounds and Composites by Mechanical Alloying

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