Thermal analysis during solidification of cast Al-Si alloys

被引：37

作者：

Canales, A. A. ^{[2
]}

Talamantes-Silva, J. ^{[3
]}

Gloria, D. ^{[4
]}

Valtierra, S. ^{[4
]}

Colas, R. ^{[1
]}

机构：

[1] Univ Autonoma Nuevo Leon, Fac Ingn Mecan & Elect, San Nicolas De Los Garza 66451, NL, Mexico

[2] Cuprum SA CV, San Nicolas De Los Garza 66480, NL, Mexico

[3] Nemak SA CV, Garcia 66000, NL, Mexico

[4] Owens Corning, Santa Catarina 66350, NL, Mexico

来源：

THERMOCHIMICA ACTA | 2010年 / 510卷 / 1-2期

关键词：

Aluminium; Casting; Solidification; Thermal analysis; HEAT-TRANSFER;

D O I：

10.1016/j.tca.2010.06.026

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Solidification of a series of aluminium alloys was studied by means of thermal analysis; the study was centred on the effect that silicon and iron exert on the temperatures for the onset of different microstructural characteristics. The alloys were prepared in a gas fired furnace and were poured into graphite moulds instrumented with a type K thermocouple. The cooling curve was registered with the aid of a computer-driven data logging system and was derived to determine the temperatures for the onset of the formation of pre-eutectic aluminium dendrites, and those for the Al-Si eutectic and for a complex Al-Si-Cu-Mg eutectic. It was found that silicon exerts a strong influence on the two former temperatures, whereas the third one is independent of the content of silicon or iron. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：82 / 87

页数：6

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