Phase constitution of ball-milling Fe-Ni powders with alcohol

被引:0
作者
Zhang, Ya-Jing [1 ]
He, Kai-Yuan [2 ]
Cheng, Li-Zhi [2 ]
Liu, Chang-Sheng [2 ]
机构
[1] Sch. of Mech. Eng. and Automat., Northeastern Univ., Shenyang 110004, China
[2] Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
来源
Dongbei Daxue Xuebao/Journal of Northeastern University | 2003年 / 24卷 / 08期
关键词
Alcohols - Ball milling - Iron alloys - Magnetic materials - Mechanical alloying - Nickel alloys - Solid solutions;
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摘要
The phase constitution and grain size of ball-milling Fe-Ni powders with alcohol as well as the lattice parameter evolution were investigated by X-ray diffraction. The condition of ball-milling was taken as follow: the weight ratio of ball to powder is 6:1, and the revolving velocity is 240 r/min. It is shown that the Fe concentration in the Ni fcc phase increases with the increase of the ball-milling time. The fcc solid solution γ(Fe-Ni) is formed after milling 12 h. The a-Fe is separated out gradually from the γ (Fe-Ni) phase above milling 18 h. The fcc γ phase becomes pure again Ni after milling 48 h. With the further increase of the milling time, the lattice parameter of the a-Fe phase decreases. With the increase of Ni atom fraction in the Fe-Ni mixture meanwhile that of fcc phase increases.
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页码:795 / 797
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