Characterization and formation mechanism of nanocrystalline (Fe,Ti)3Al intermetallic compound prepared by mechanical alloying

被引：36

作者：

Rafiei, M. ^{[1
]}

Enayati, M. H. ^{[1
]}

Karimzadeh, F. ^{[1
]}

机构：

[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 480卷 / 02期

关键词：

Nanostructured materials; Mechanical alloying; Intermetallics; FE3AL; FEAL; TEMPERATURE; COMPOSITES; TITANIUM;

D O I：

10.1016/j.jallcom.2009.02.072

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The nanocrystalline (Fe,Ti)(3)Al intermetallic compound was synthesized by mechanical alloying (MA) of elemental powder with composition Fe50Al25Ti25. The structural changes of powder particles during mechanical alloying were studied by X-ray diffractometry and microhardness measurements. Morphology and cross-sectional microstructure of powder particles were characterized by scanning electron microscopy. It was found that a Fe/Al/Ti layered structure was formed at the early stages of milling followed by the formation of Fe(Ti,Al) solid solution. This structure transformed to (FeTi)(3)Al intermetallic compound at longer milling times. Upon heat treatment of (Fe,Ti)(3)Al phase the degree of DO3 ordering was increased. The (Fe,Ti)(3)Al compound exhibited high microhardness value of about 1050 Hv. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：392 / 396

页数：5

共 20 条

[1] The effect of chromium on the B2-DO3 transformation in Fe3Al [J].

Cairney, JM ;

Munroe, PR .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1999, 18 (06) :449-452

[2]

Chuncheng H., 2002, J NANOPART RES, V4, P107

[3] Mechanically induced driving forces in preparing W-Cu nanocomposite [J].

Eghtesadi, S. ;

Parvin, N. ;

Renee, M. ;

Salari, M. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 473 (1-2) :557-559

[4] Synthesis of nanocrystalline NiAl by mechanical alloying [J].

Enayati, M. H. ;

Karimzadeh, F. ;

Anuari, S. Z. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2008, 200 (1-3) :312-315

[5] Formation mechanism of Fe3Al and FeAl intermetallic compounds during mechanical alloying [J].

Enayati, MH ;

Salehi, M .

JOURNAL OF MATERIALS SCIENCE, 2005, 40 (15) :3933-3938

[6]

ENAYATI MH, 1998, THESIS U OXFORD

[7] EFFECTS OF MOLYBDENUM, TITANIUM AND SILICON ADDITIONS ON THE DO3 REVERSIBLE B2 TRANSITION-TEMPERATURE FOR ALLOYS NEAR FE3AL [J].

FORTNUM, RT ;

MIKKOLA, DE .

MATERIALS SCIENCE AND ENGINEERING, 1987, 91 :223-231

[8] Structural investigations of the Al50Fe25Ti25 powder mixture mechanically alloyed under various conditions [J].

Krasnowski, M ;

Matyja, H .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 319 (1-2) :296-302

[9] Structure of Al50Ti50-xFex alloys prepared by mechanical alloying and subsequent annealing [J].

Leonov, AV ;

Fadeeva, VI ;

Gladilina, OE ;

Matyja, H .

JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 281 (02) :275-279

[10] Recent advances in B2 iron aluminide alloys: deformation, fracture and alloy design [J].

Liu, CT ;

George, EP ;

Maziasz, PJ ;

Schneibel, JH .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 258 (1-2) :84-98

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