Development of amorphous and nanocrystalline Al65Cu35-xZrx alloys by mechanical alloying

被引：25

作者：

Manna, I ^{[1
]}

Chattopadhyay, PP

Banhart, F

Fecht, HJ

机构：

[1] Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India

[2] DU, BE Coll, Dept Met, Howrah 711103, India

[3] Univ Ulm, Dept Electron Microscopy, D-89069 Ulm, Germany

[4] Univ Ulm, Div Mat, D-89081 Ulm, Germany

[5] Res Ctr Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2004年 / 379卷 / 1-2期

关键词：

mechanical alloying; aluminum alloy; amorphous; nanocrystalline; composite;

D O I：

10.1016/j.msea.2004.03.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mechanical alloying of Al65Cu35-xZrx (x = 5, 15 and 25 at.% Zr) elemental powder blends by planetary ball milling up to 50 h yields amorphous and/or nanocrystalline products. Microstructure of the milled product at different stages of milling has been characterized by X-ray diffraction, (XRD) high-resolution transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). Among the different alloys synthesized by mechanical alloying, Al65Cu20Zr15 yields a predominantly amorphous product, while the other two alloys develop a composite microstructure comprising nanocrystalline and amorphous solid solutions in Al65Cu10Zr25 and nano-intermetallic phase/compound in Al65Cu30Zr5, respectively. The genesis of solid-state amorphization in Al65Cu20Zr15 and Al65Cu20Zr25 is investigated. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：360 / 365

页数：6

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