Fabrication of high-strength duplex nanoporous Cu by dealloying a dual-phase Mg-Cu precursor alloy

被引：7

作者：

Lee, Si-Young ^{[1
]}

Baek, Soo-Min ^{[1
]}

Gwak, Eun-Ji ^{[1
]}

Kang, Na-Ri ^{[1
]}

Kim, Ju-Young ^{[1
]}

Kim, Su-Hyeon ^{[2
]}

Lee, Jung Gu ^{[3
]}

Park, Sung Soo ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Sch Mat Sci & Engn, Ulsan 44919, South Korea

[2] Korea Inst Mat Sci, Chang Won 51508, South Korea

[3] Univ Ulsan, Sch Mat Sci & Engn, Ulsan 44610, South Korea

来源：

JOURNAL OF MAGNESIUM AND ALLOYS | 2020年 / 8卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Mg-Cu alloy; Nanoporous Cu; Dealloying; Duplex structure; Strength; YIELD STRENGTH; GOLD; COPPER; NI; EVOLUTION; METALS;

D O I：

10.1016/j.jma.2020.02.015

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Duplex nanoporous Cu was successfully fabricated by dealloying a dual-phase Mg-Cu precursor alloy consisting of intermetallic Mg2Cu and MgCu2. The duplex nanoporous Cu with embedded nanoporous struts exhibited highly enhanced strength compared to the typical monolithic nanoporous Cu under both compressive and flexural test conditions at room temperature; the duplex np-Cu sample exhibited a 12 times higher compressive strength and a 40 times greater flexural strength than the monolithic np-Cu sample. Factors responsible for the strength enhancement in the duplex nanoporous Cu are discussed. (c) 2020 Published by Elsevier B.V. on behalf of Chongqing University.

引用

页码：910 / 916

页数：7

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