Nanometer-sized porous Ti-based metallic glass

被引：86

作者：

Jayaraj, J.

Park, B. J.

Kim, D. H.

Kim, W. T.

Fleury, E.

机构：

[1] Korea Inst Sci & Technol, Adv Met Res Ctr, Seoul 130650, South Korea

[2] Yonsei Univ, Dept Met Engn, Seoul 120749, South Korea

[3] Cheongju Univ, Div Appl Sci, Cheongju 360764, South Korea

来源：

SCRIPTA MATERIALIA | 2006年 / 55卷 / 11期

关键词：

metallic glass; titanium; porous material; corrosion; dealloying;

D O I：

10.1016/j.scriptamat.2006.07.054

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A porous Ti-based metallic glass has been fabricated by applying the principle of dealloying to the Y20Ti36Al24Co20 two-phase amorphous alloy. The initial microstructure of the two-phase glassy alloy consisted of Ti43.3Y3.7Al15.3Co37.7 and Y38.8Ti12.8Al37.1Co11.3 amorphous phases forming an interconnected structure. To fabricate the porous structure, the Y-rich phase has been selectively dissolved from the alloy using both chemical and electrochemical treatments in 0.1 M HNO3 solution. The glassy nature of the porous Ti-based alloy was confirmed by transmission electron microscopy analyses. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1063 / 1066

页数：4

共 25 条

[1] Manufacture, characterisation and application of cellular metals and metal foams [J].