Thermodynamic analysis of the aluminum alloy foaming process by melt route

被引：5

作者：

Gonzalez-Nava, Marlenne ^{[1
]}

Cruz-Ramirez, Alejandro ^{[1
]}

Angel Suarez-Rosales, Miguel ^{[2
]}

Hernandez Perez, Maria de los Angeles ^{[1
]}

机构：

[1] UPALM, ESIQIE, Inst Politecn Nacl, Dept Ingn Met & Mat, Mexico City 07051, DF, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Invest Mat, Circuito Exterior S-N Cd Univ, Mexico City 04510, DF, Mexico

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2018年 / 32卷

关键词：

Metallic foams; Aluminum alloy; Compounds; Thermodynamic analysis; Foaming agent; FOAMABILITY; CARBONATES; OXIDATION; AGENT; AIR;

D O I：

10.1016/j.jmapro.2018.01.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A thermodynamic analysis was carried out to determine the stability compounds formed by the interaction between the molten alloy (A356 alloy) with a foaming agent (1, 2, 3 wt. % CaCO3) and a thickening agent (1 wt. % AL(2)O(3)) for the production of closed-cell aluminum alloy foams. Stability phase diagrams were obtained to 973, 1073 and 1173 K and they showed the formation of the compounds MgAl2O4, CaAl4O7, Al4C3, and Al4O4C. Typical closed-cell foams of the A356 aluminum alloy were produced to the same conditions of the thermodynamic analysis. The structure of the foams produced was evaluated by SEM-EDS and Raman techniques. The stability compounds predicted are in good agreement with those determined experimentally. The compounds formed by the interaction between the particles and the melt were increased with the increase of the foaming agent and were located at the cell walls. (C) 2018 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.

引用

页码：77 / 84

页数：8

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