Effect of Fe on grain refining of pure aluminum refined by Al5TiB master alloy

被引：19

作者：

Zhang, YJ ^{[1
]}

Wang, HW ^{[1
]}

Ma, NH ^{[1
]}

Li, XF ^{[1
]}

机构：

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

来源：

MATERIALS LETTERS | 2005年 / 59卷 / 27期

关键词：

grain refining; Al5TiB master alloy; aluminum; scanning electron microscopy (SEM);

D O I：

10.1016/j.matlet.2005.06.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High pure aluminum and commercial pure aluminum were refined by Al5TiB master alloy, respectively. Experimental results show 0.2 wt.% Al5TiB master alloy can refine commercial pure aluminum effectively, but has no contribution to the refining of high pure aluminum and 1 wt.% Al5TiB master alloy also can refine high pure aluminum effectively. SEM observation indicates that in situ FeAl3 rod phase was found on grain boundary. According to experimental findings, the effect of Fe includes promoting nucleation of primary alpha-Al and forming FeAl3 rods which can act as pinning effect on grain boundary to hinder growth of a-Al grain. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：3398 / 3401

页数：4

共 10 条

[1] Backerud L., 1991, ALUMINIUM, V67, P780
[2] BACKERUD L, 1996, LIGHT MET, V27, P679
[3] Grain refinement of aluminum alloys: Part I. The nucleant and salute paradigms - A review of the literature
Easton, M
StJohn, D
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (06): : 1613 - 1623
[4] Modelling of inoculation of metallic melts: Application to grain refinement of aluminium by Al-Ti-B
Greer, AL
Bunn, AM
Tronche, A
Evans, PV
Bristow, DJ
[J]. ACTA MATERIALIA, 2000, 48 (11) : 2823 - 2835
[5] THE ROLE OF BORON IN THE GRAIN-REFINEMENT OF ALUMINUM WITH TITANIUM
GUZOWSKI, MM
SIGWORTH, GK
SENTNER, DA
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1987, 18 (04): : 603 - 619
[6] STUDY OF THE MECHANISM OF GRAIN-REFINEMENT OF ALUMINUM AFTER ADDITIONS OF TI-CONTAINING AND B-CONTAINING MASTER ALLOYS
JOHNSSON, M
BACKERUD, L
SIGWORTH, GK
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1993, 24 (02): : 481 - 491
[7] Fading mechanism of grain refinement of aluminum-silicon alloy with Al-Ti-B grain refiners
Limmaneevichitr, C
Eidhed, W
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 349 (1-2): : 197 - 206
[8] Effect of silicon on grain refinement of aluminum produced by electrolysis
Liu, ZY
Wang, MX
Weng, YG
Song, TF
Huo, YP
Xie, JP
[J]. MATERIALS TRANSACTIONS, 2003, 44 (10) : 2157 - 2162
[9] MECHANISM OF GRAIN-REFINEMENT IN ALUMINUM
MOHANTY, PS
GRUZLESKI, JE
[J]. ACTA METALLURGICA ET MATERIALIA, 1995, 43 (05): : 2001 - 2012
[10] Mondolfo L.F., 1976, ALUMINUM ALLOYS

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