Formation of Ni(Al,Mo) solid solutions by mechanical alloying and their ordering on heating

被引：0

作者：

Portnoj, V.K. ^{[1
]}

Blinov, A.M. ^{[1
]}

Tomilin, I.A. ^{[1
]}

Kulik, T. ^{[1
]}

机构：

[1] MGU im. M.V. Lomonosova, Moscow, Russia

来源：

Metally | 2002年 / 04期

关键词：

Aluminum - Composition effects - Mechanical alloying - Molybdenum - Nickel - Order disorder transitions - Phase composition - Solid solutions;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Solid solutions are formed as a result of mechanical alloying the powder mixtures of two compositions, namely, Ni70Al25Mo5 (I) and Ni75Al20Mo5 (II). The quantitative x-ray diffraction analysis showed that the atoms of Mo substitute completely the positions of Al in I mixture after mechanical alloying with formation of ternary ordered phase [Ni75(Al,Mo)25]. In this case, such distribution holds after heating up to 700°C. A metastable solid solution of Ni(Al,Mo) is formed in II mixture, that decomposes under heating with precipitation of Mo particles and L12-type ordering the retained aluminide.

引用

页码：105 / 109

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