Grain refinement of an aluminum alloy by introducing gas bubbles during solidification

被引：142

作者：

Wannasin, J. ^{[1
]}

Martinez, R. A.

Flemings, M. C.

机构：

[1] Prince Songkla Univ, Dept Min & Mat Engn, Hat Yai 90112, Thailand

[2] Selmet Inc, Albany, OR 97322 USA

[3] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

SCRIPTA MATERIALIA | 2006年 / 55卷 / 02期

关键词：

grain refinement; solidification; gas bubble; semi-solid metal; dendrite fragmentation;

D O I：

10.1016/j.scriptamat.2006.04.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new technique to achieve grain refinement using gas bubbles to agitate a molten metal during solidification is reported. The effects of the processing conditions on the degree and homogeneity of the grain refinement are discussed. Results show that a fully grain-refined structure can be obtained using suitable processing conditions. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：115 / 118

页数：4

共 17 条

[1] Solidification of aluminium alloys under ultrasonic irradiation using water-cooled resonator [J].

Abramov, V ;

Abramov, O ;

Bulgakov, V ;

Sommer, F .

MATERIALS LETTERS, 1998, 37 (1-2) :27-34

[2]

DOBATKIN VI, 1984, VESTN AN SSSR+, V1, P139

[3] Origin of equiaxed grains and their motion in the liquid phase [J].

Esaka, H ;

Wakabayashi, T ;

Shinozuka, K ;

Tamura, M .

ISIJ INTERNATIONAL, 2003, 43 (09) :1415-1420

[4] Semisolid metal processing [J].

Fan, Z .

INTERNATIONAL MATERIALS REVIEWS, 2002, 47 (02) :49-85

[5] RHEOCASTING [J].

FLEMINGS, MC ;

RIEK, RG ;

YOUNG, KP .

MATERIALS SCIENCE AND ENGINEERING, 1976, 25 (SEP-O) :103-117

[6] BEHAVIOR OF METAL-ALLOYS IN THE SEMISOLID STATE [J].

FLEMINGS, MC .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (05) :957-981

[7]

FLEMINGS MC, 2004, 2004 TMS ANN M CHARL, P3

[8]

Han, 2004, TMS ANN M CHARL NC M, P131

[9] Effect of power ultrasound on solidification of aluminum A356 alloy [J].

Jian, X ;

Xu, H ;

Meek, TT ;

Han, Q .

MATERIALS LETTERS, 2005, 59 (2-3) :190-193

[10]

Kenney M. P., 1998, METALS HDB, V15, P327

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