Synthesis and consolidation via spark plasma sintering of nanostructured Al-5356/B4C composite

被引：78

作者：

Vintila, R. ^{[1
]}

Charest, A. ^{[2
]}

Drew, R. A. L. ^{[3
]}

Brochu, M. ^{[1
]}

机构：

[1] McGill Univ, Aluminium Res Ctr REGAL, Dept Min & Mat Engn, Montreal, PQ H3A 2B2, Canada

[2] Univ Ottawa, Ottawa, ON K1N 6N5, Canada

[3] Concordia Univ, Fac Engn & Comp Sci, Montreal, PQ H3G 1M8, Canada

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 13-14期

关键词：

Al-B4C metal-matrix composites; Cryomilling; Spark plasma sintering; REINFORCED AL NANOCOMPOSITE; MECHANICAL-PROPERTIES; MATRIX COMPOSITES; ALUMINUM-ALLOY; PARTICULATE; MICROSTRUCTURE; BEHAVIOR; FABRICATION; EVOLUTION; FIBER;

D O I：

10.1016/j.msea.2011.02.079

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The combination of two versatile processing routes: cryomilling and spark plasma sintering (SPS) was employed in the present study for fabrication of bulk Al5356-B4C nanocomposites. This approach resulted in large microhardness and flexural strengths values in the consolidated samples of 244 +/- 2.06 HV and 707 MPa respectively. While cryomilling provided the combined advantage of homogenous dispersion of the reinforcement in the matrix as well as nanostructuring of the Al-5356 phase, the SPS facilitated the solid state consolidation of the metal matrix composite (MMC) in one single step at very high sintering rates and very short dwelling times. No additional processing steps such as forging or hot extrusion were necessary to achieve powder consolidation. The resulted samples exhibited two to three times higher microhardness values than the monolithic micron sized un-reinforced alloy. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：4395 / 4407

页数：13

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