Effect of Equal Channel Angular Pressing (ECAP) on Microstructure and Properties of Al-FeAlCr Intermetallic Phase Composites

被引：4

作者：

Cardoso, Katia Regina ^{[1
]}

Munoz-Morris, Maria A. ^{[2
]}

Lieblich, Marcela ^{[2
]}

Morris, David ^{[2
]}

机构：

[1] Univ Fed Sao Paulo UNIFESP, Inst Ciencia & Tecnol ICT, BR-12231280 Sao Jose Dos Campos, SP, Brazil

[2] CSIC, CENIM, Dept Met Phys, E-28040 Madrid, Spain

来源：

MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS | 2014年 / 17卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

ECAP; composite; aluminium; intermetallic; MATRIX COMPOSITES; DUCTILITY; BEHAVIOR;

D O I：

10.1590/S1516-14392014005000029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An aluminium matrix composite was prepared by mixing commercial aluminium powders and 15 vol % of FeAlCr powders and consolidation by hot extrusion. The extruded composite was subjected to severe plastic deformation by equal channel angular pressing (ECAP) at room temperature and at 150 degrees C. The extruded composite presents a uniform distribution of particles although some defects are observed such as residual pores and particle agglomerates. The particle distribution does not show a significant change due to ECAP. The extruded composite exhibits a relatively fine grain size of the order of 1-2 mu m that was refined to 550 nm after three ECAP passes at room temperature by route A and to 636 nm after four passes at 150 degrees C by route Bc. The yield stress of the composites was increased by 140 to 180% after ECAP as compared with the extruded condition.

引用

页码：775 / 780

页数：6

共 19 条

[1]

AGUADO MAM, 2004, THESIS U COMPLUTENSE

[2] Mechanical behavior of a 6061 Al alloy and an Al2O3/6061 Al composite after equal-channel angular processing [J].

Chen, LJ ;

Ma, CY ;

Stoica, GM ;

Liaw, PK ;

Xu, C ;

Langdon, TG .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 410 :472-475

[3] The effect of ball milling on the microstructure of powder metallurgy aluminium matrix composites reinforced with MoSi2 intermetallic particles [J].

Corrochano, J. ;

Lieblich, M. ;

Ibanez, J. .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2011, 42 (09) :1093-1099

[4] Ni3Al intermetallic particles as wear-resistant reinforcement for Al-base composites processed by powder metallurgy [J].

Diaz, C ;

GonzalezCarrasco, JL ;

Caruana, G ;

Lieblich, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (10) :3259-3266

[5] ALUMINUM NI3AL COMPOSITES PROCESSED BY POWDER-METALLURGY [J].

GONZALEZCARRASCO, JL ;

GARCIACANO, F ;

CARUANA, G ;

LIEBLICH, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, 183 (1-2) :L5-L8

[6] Achieving enhanced tensile ductility in an Al-6061 composite processed by severe plastic deformation [J].

Han, BQ ;

Langdon, TG .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 410 :430-434

[7] An investigation of microstructural evolution during equal-channel angular pressing [J].

Iwahashi, Y ;

Horita, Z ;

Nemoto, M ;

Langdon, TG .

ACTA MATERIALIA, 1997, 45 (11) :4733-4741

[8] Equal channel angular pressing of a SiCw reinforced aluminum-based composite [J].

Ma, DY ;

Wang, JT ;

Xu, KW .

MATERIALS LETTERS, 2002, 56 (06) :999-1002

[9] Severe plastic deformation processing and high strain rate superplasticity in an aluminum matrix composite [J].

Mishra, RS ;

Valiev, RZ ;

McFadden, SX ;

Islamgaliev, RK ;

Mukherjee, AK .

SCRIPTA MATERIALIA, 1999, 40 (10) :1151-1155

[10]

MUKHERJEE AK, 1999, SCRIPTA MATER, V40, P1151

← 1 2 →