Preparation and characterization of nanocrystalline Ti-2 at%Fe-10 at%Si alloy by mechanical alloying and pulsed current sintering process

被引：0

作者：

Kobayashi, K ^{[1
]}

Matsumoto, A ^{[1
]}

Nishio, T ^{[1
]}

Ozaki, K ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Inst Struct & Engn Mat, Nagoya, Aichi 4638560, Japan

来源：

JOURNAL OF THE JAPAN INSTITUTE OF METALS | 2003年 / 67卷 / 04期

关键词：

mechanical alloying; pulsed current sintering; Ti-2 at%Fe-10 at%Si; nanocrystalline; amorphous;

D O I：

10.2320/jinstmet1952.67.4_177

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Ti-2 at% Fe-10 at%Si amorphous powder was synthesized by mechanical alloying (MA) of pure Ti, Fe and Si powders using a planetary ball milling for 1440 ks. The crystallization temperature of the obtained amorphous powder was about 830 K. Ti-2 at%Fe-10at%Si amorphous powder was consolidated using a pulsed current sintering (PCS) process at a die temperature of 773 K under a pressure of 372 MPa. The compact was densified at the die temperature between 743 K and 763 K with the crystallization of amorphous phase. The obtained Ti-2 at%Fc-10 at%Si alloy consists mainly of nanocrystalline alpha-Ti phase. The compressive strength of the nanocrystalline compact at a room temperature was more than 1.7 GPa, which was much higher than that of the commercial Ti-6 mass%Al-4 mass%V alloy.

引用

页码：177 / 180

页数：4

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