A New Iron-Rich Intermetallic-Al m Fe Phase in Al-4.6Cu-0.5Fe Cast Alloy

被引：35

作者：

Liu, K. ^{[1
]}

Cao, X. ^{[1
,2
]}

Chen, X-G ^{[1
]}

机构：

[1] Univ Quebec Chicoutimi, Dept Appl Sci, Chicoutimi, PQ G7H 2B1, Canada

[2] Natl Res Council Canada, Aerosp Mfg Technol Ctr, Inst Aerosp Res, Montreal, PQ H3T 2B2, Canada

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2012年 / 43A卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

PCT SI ALLOY; MECHANICAL-PROPERTIES; MICROSTRUCTURE; SOLIDIFICATION; SELECTION;

D O I：

10.1007/s11661-011-1004-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new iron-rich intermetallic, Al (m) Fe, is observed, for the first time, in the important A206 (Al-4.6Cu-0.5Fe) cast alloy and identified using electron backscattered diffraction (EBSD) and a transmission electron microscope (TEM). Results show that Chinese script Al (m) Fe can precipitate as the dominant iron-rich intermetallic at high iron content (0.5 wt pct) and low cooling rate (0.2 K/s). EBSD and TEM results confirmed that Al (m) Fe has body-centered-tetragonal structure with an average m of approximately 4.2.

引用

页码：1097 / 1101

页数：5

共 24 条

[1] Calculation of phase diagrams for the metastable Al-Fe phases forming in direct-chill (DC) cast aluminum alloy ingots [J].

Aliravci, CA ;

Pekguleryuz, MO .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1998, 22 (02) :147-155

[2] Intermetallic phase selection in 1XXX Al alloys [J].

Allen, CM ;

O'Reilly, KAQ ;

Cantor, B ;

Evans, PV .

PROGRESS IN MATERIALS SCIENCE, 1998, 43 (02) :89-170

[3]

Backerud L., 1986, Skan-Aluminum, Norvege, V1, P63

[4]

Belov N.A., 2002, IRON ALUMINUM ALLOYS, P14

[5] The nucleation of Fe-rich phases on oxide films in Al-11.5Si-0.4Mg cast alloys [J].

Cao, X ;

Campbell, J .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (07) :1409-1420

[6]

Chen XG, 1998, LIGHT METALS 1998, P1071

[7]

Cho J., 2003, AFS Trans, V111, P1

[8]

COUTURE A, 1981, INT CAST MET J, V6, P9

[9] Calculation of the liquidus temperature for hypo and hypereutectic aluminum silicon alloys [J].

Hernandez, FCR ;

Djurdjevic, MB ;

Kierkus, WT ;

Sokolowski, JH .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 396 (1-2) :271-276

[10]

Jacob S., 1970, FONDERIE, V294, P326

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