alpha-and beta-Phases of the Al-Mn-Si System

被引：1

作者：

Kazennov, N., V ^{[1
]}

Kalmykov, K. B. ^{[1
]}

Dunaev, S. F. ^{[1
]}

Zvereva, N. L. ^{[1
]}

Dmitrieva, N. E. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Gen Chem Dept, Moscow, Russia

来源：

MOSCOW UNIVERSITY CHEMISTRY BULLETIN | 2010年 / 65卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

phase equilibrium; scanning electron microscopy; X-ray analysis; aluminum alloys; diffusion; quasi-crystals;

D O I：

10.3103/S0027131410060088

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Homogeneity regions and crystal structures of ternary alpha-and beta-phases based on Al9Mn2Si and Al9Mn3Si have been investigated at a temperature of 823 K by scanning electron microscopy, X-ray, and electron probe microanalysis techniques. It is established that the alpha-phase is formed in the composition region of 7.4-15.9 at % of Si at a manganese isoconcentrate of similar to 18 at %. When the manganese concentration is 2426%, the beta-phase has a homogeneity region from 3.7 to 18.5 at % of Si and is situated parallel to the Al-Si side. A fragment of the isothermal section for the Al-Mn-Si system in an aluminum-rich alloy region has been constructed.

引用

页码：374 / 379

页数：6

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