Influence of Compacting Temperature in Vacuum Hot Pressing on the Microstructure and Mechanical Properties of Al-Ni-Zr Amorphous Alloys Prepared by Mechanical Alloying
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概要
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Amorphous Al<SUB>100-x</SUB>Ni<SUB>0.6x</SUB>Zr<SUB>0.4x</SUB>(X=30, 35 and 40) alloys were prepared by double mechanical alloying, and the obtained amorphous alloy powders were consolidated at various compacting temperatures by vacuum hot pressing. Changes of thermal stability, mechanical properties and microstructure of the compacts with the compacting temperature were measured. As a result, amorphous powder double mechanically alloyed begins to crystallize at 670-730K, while the compacts consolidated by the vacuum hot pressing at same temperature range is kept amorphous state. Also both the rupture strength and maximum deflection in the bending for the compacts reach the maximum value when they are consolidated at 750-800 K. In addition, the structure of amorphous phase in the compacts partially begins to crystallize, at the same compacting temperature range, to form ultra fine grains with the composition of Al<SUB>40</SUB>Ni<SUB>51.5</SUB>Zr<SUB>8.5</SUB> whose average diameter is about 20nm, dispersed through the amorphous matrix.
- 社団法人 粉体粉末冶金協会の論文
- 2002-07-15
著者
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YUASA Eiji
Faculty of Engineering, Musashi Institute of Technology
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Yuasa Eiji
Faculty Of Engineering Musashi Institute Of Technology
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Tsuzuki Ritsuko
Graduate School Musashi Institute Of Technology
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SAIKI Yasuhiro
Graduate School, Musashi Institute of Technology
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KATAOKA Sho
Graduate School, Musashi Institute of Technology
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Kataoka Sho
Graduate School Musashi Institute Of Technology
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Saiki Yasuhiro
Graduate School Musashi Institute Of Technology
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YUASA Eiji
Musashi Institute of Technology
関連論文
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- 204 Solid-State Synthesis of Mg_2Si Intermetallic Compound via Powder Metallurgy Process
- Solid-State Synthesis of Mg_2Si from Mg-Si Mixture Powder
- Influence of Compacting Temperature in Vacuum Hot Pressing on the Microstructure and Mechanical Properties of Al-Ni-Zr Amorphous Alloys Prepared by Mechanical Alloying
- Compactibility of Al-Ni-Zr Amorphous Powder Produced by the Mechanical Alloying Method
- Preparation of Ultra Fine-Grained Magnesium Alloy by Mechanical Alloying of AZ31 Chip-Aluminum Powder Mixture
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- Thermal Behavior of AZ31 and Si in Solid State Synthesis of Mg_2Si