Effect of chemical composition on the microstructure and hardness of Al-Cu-Fe alloy

被引：14

作者：

Suarez, M. A. ^{[1
]}

Esquivel, R. ^{[1
]}

Alcantara, J. ^{[1
]}

Dorantes, H. ^{[1
]}

Chavez, J. F. ^{[1
]}

机构：

[1] UPALM, Dept Engn Met & Mat, ESIQIE Inst Politecn Nacl, Mexico City 07738, DF, Mexico

来源：

MATERIALS CHARACTERIZATION | 2011年 / 62卷 / 09期

关键词：

Aluminium alloys; Characterization; Quasicrystals; Microstructures; Hardness; QUASI-CRYSTALS; THERMAL-CONDUCTIVITY; PHASE-DIAGRAM; SOLIDIFICATION;

D O I：

10.1016/j.matchar.2011.06.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Four Al-Cu-Fe alloys with compositions; a) Al65Cu20Fe15, b) Al64Cu22.5Fe13.5, c) Al61Cu26Fe13 and d) Al62Cu25.5Fe12.5, where the icosahedral phase is present, have been experimentally studied in both as-cast and annealed conditions in order to investigate the effect of chemical composition on the percentage of icosahedral phase and the changes in hardness of the alloy and each phase. It was found that the a) Al65Cu20Fe15 and b) Al(64)cu(22.5)Fe(13.5) alloys, which present the highest Fe content, showed the largest amount of lambda-Al13Fe4 phase as well as the highest hardness in all phases. In contrast, the same alloys developed the lowest amount of icosahedral phase after heat treatment. The c) Al61Cu26Fe13 and d) Al62Cu25.5Fe12.5 alloys had a better response to heat treatment, reaching amounts of icosahedral phase up to 87% and 99% respectively. The hardness of phases after heat treatment increased with respect to alloys in as- cast condition, the hardness of icosahedral phase increased between 20% and 25%, while the hardness of lambda-Al13Fe4 phase increased 9%. The icosahedral phase of annealed a) Al65Cu20Fe15 alloy was the toughest with a hardness value of 844HV. (c) 2011 Elsevier Inc. All rights reserved.

引用

页码：917 / 923

页数：7

共 31 条

[1] Thermal conductivity of quasicrystals and associated processes [J].

Archambault, P ;

Janot, C .

MRS BULLETIN, 1997, 22 (11) :48-53

[2] Laser cladding of aluminium-base quasicrystalline alloys [J].

Audebert, F ;

Colaço, R ;

Vilar, R ;

Sirkin, H .

SCRIPTA MATERIALIA, 1999, 40 (05) :551-557

[3] Formation of ω-Al7Cu2Fe phase during laser processing of quasicrystal-forming Al-Cu-Fe alloy [J].

Biswas, K. ;

Chattopadhyay, K. .

PHILOSOPHICAL MAGAZINE LETTERS, 2008, 88 (03) :219-230

[4] Development of novel polymer/quasicrystal composite materials [J].

Bloom, PD ;

Baikerikar, KG ;

Otaigbe, JU ;

Sheares, VV .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 294 :156-159

[5]

Bonneville J, 2008, DISCLOC SOLIDS, V14, P251, DOI 10.1016/S1572-4859(07)00005-8

[6]

CHATTOPADHYAY K, 2001, MAT RES SOC S P

[7] QUASI-CRYSTALS AND CRYSTALLINE PHASES IN AL65CU20FE10CR5 ALLOY [J].

DONG, C ;

DUBOIS, JM .

JOURNAL OF MATERIALS SCIENCE, 1991, 26 (06) :1647-1654

[8] REAL-TIME STUDY OF THE GROWTH OF AL-CU-FE QUASICRYSTALS [J].

DONG, C ;

DEBOISSIEU, M ;

DUBOIS, JM ;

PANNETIER, J ;

JANOT, C .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1989, 8 (07) :827-830

[9] TOWARDS APPLICATIONS OF QUASI-CRYSTALS [J].

DUBOIS, JM ;

KANG, SS ;

PERROT, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 179 (pt 1) :122-126

[10] ABOUT THE AL-CU-FE ICOSAHEDRAL PHASE FORMATION [J].

FAUDOT, F ;

QUIVY, A ;

CALVAYRAC, Y ;

GRATIAS, D ;

HARMELIN, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1991, 133 :383-387

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