Formation of metastable phases during solidification of Al-3.2 wt% Mn

被引：5

作者：

Khvan, Alexandra V. ^{[1
]}

Cheverikin, Vladimir V. ^{[1
]}

Dinsdale, Alan T. ^{[1
]}

Watson, Andy ^{[1
,2
]}

Levchenko, Viktor V. ^{[3
]}

Zolotorevskiy, Vadim S. ^{[3
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Thermochem Mat SRC, Moscow 119049, Russia

[2] Univ Leeds, Inst Mat Res, Sch Chem & Proc Engn, Leeds LS2 9JT, W Yorkshire, England

[3] Natl Univ Sci & Technol MISIS, Dept Phys Met Nonferrous Met, Moscow 119049, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 622卷

关键词：

Al-Mn system; Solidification; Thermodynamics; Solid solution; Intermetallics; Phase diagram; ALUMINUM; MANGANESE; SELECTION; GROWTH; CE;

D O I：

10.1016/j.jallcom.2014.09.155

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The solidification of the technologically important Al-rich Al-Mn alloys has been studied both experimentally and by calculation of the phase equilibria. The results of previous experimental studies, which indicated that one or more stable intermetallic phases are suppressed on solidification from the liquid, have been confirmed. It was shown that it is important to consider the formation of Al11Mn4 even though other intermetallic phases have a higher driving force for solidification. It is concluded that while an understanding of the thermodynamic properties of the phases is fundamental to modelling the formation of microstructure associated with solidification, it is necessary to take into account other effects such as the thermodynamic properties at interfaces and their effect on nucleation. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：223 / 228

页数：6

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