Effects of Na2B4O7 on the elimination of iron from aluminum melt

被引：52

作者：

Gao, J. W. ^{[1
]}

Shu, D. ^{[1
]}

Wang, J. ^{[1
]}

Sun, B. D. ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200030, Peoples R China

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 03期

关键词：

aluminum; iron; thermodynamics; purification;

D O I：

10.1016/j.scriptamat.2007.04.009

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new approach for iron removal from commercial aluminum by the addition of Na2B4O7 was studied. The iron composition decreased from 0.33 to 0.18 wt. % after purification. X-ray diffraction analysis of the Sludge indicated that the chemical reaction between B and Fe in the aluminum melt to form Fe2B is the main reason for the reduction in Fe. Thermodynamic calculations also prove the formation of an iron boride phase in the melt. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：197 / 200

页数：4

共 13 条

[1]

[Anonymous], AFS T

[2] Effect of precipitation and sedimentation of primary α-Fe phase on liquid metal quality of cast Al-11•1Si-0•4Mg alloy [J].

Cao, X ;

Campbell, J .

INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2004, 17 (01) :1-11

[3] The solidification characteristics of Fe-rich intermetallics in Al-11.5Si-0.4Mg cast alloys [J].

Cao, X ;

Campbell, J .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2004, 35A (05) :1425-1435

[4] Effect of iron and manganese contents on convection-free precipitation and sedimentation of primary α-Al(FeMn)Si phase in liquid Al-11.5Si-0.4Mg alloy [J].

Cao, X ;

Saunders, N ;

Campbell, J .

JOURNAL OF MATERIALS SCIENCE, 2004, 39 (07) :2303-2314

[5] Effect of melt superheating on convection-free precipitation and sedimentation of primary α-Fe phase in liquid Al-11.5Si-0.4Mg alloy [J].

Cao, X ;

Campbell, J .

INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2003, 15 (06) :595-608

[6]

Crepeau PN., 1995, AFS T, V103, P361

[7]

Gruzleski JE., 1990, The Treatment of Liquid Aluminum Silicon Alloys

[8] Precipitation of Fe rich intermetallics in Cr- and Co-modified A413 alloy [J].

Mahta, M ;

Emamy, M ;

Daman, A ;

Keyvani, A ;

Campbell, J .

INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2005, 18 (02) :73-79

[9]

Mondolfo L.F., 1976, ALUMINUM ALLOYS

[10] THE FORMATION OF BETA-FESIAL5, AND BE-FE PHASES IN AL-7SI-0.3MG ALLOY CONTAINING BE [J].

MURALI, S ;

RAMAN, KS ;

MURTHY, KSS .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 190 (1-2) :165-172

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