Heat-resistant bulk nanostructured P/M aluminium

被引：16

作者：

Cintas, J. ^{[1
]}

Montes, J. M. ^{[1
]}

Cuevas, F. G. ^{[1
]}

Herrera, E. J. ^{[1
]}

机构：

[1] Univ Seville, Met & Mat Engn Grp, Seville 41092, Spain

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 458卷 / 1-2期

关键词：

metals; nanostructures; mechanochemical synthesis; high temperature alloys;

D O I：

10.1016/j.jallcom.2007.04.209

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 [物理化学]; 081704 [应用化学];

摘要：

in this work, a simple route to produce bulk nanostructured aluminium is presented. Firstly, a thermally stable nanocomposite Al powder is prepared by attrition milling of elemental Al in the presence of 2.1 wt.% urea. Then, the milled powder is consolidated to full density by a conventional press-and-sinter powder metallurgy (P/M) technique. Shaped specimens possess a stable microstructure, with a grain size of about 150 nm, and the ultimate tensile strength (550 MPa) surpasses that of most commercial Al alloys, especially at high temperatures. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：282 / 285

页数：4

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