Effect of reinforcement phase on the mechanical property of tungsten nanocomposite synthesized by spark plasma sintering

被引：19

作者：

Lee, Jin-Kyu ^{[1
]}

Kim, Song-Yi ^{[2
]}

Ott, Ryan T. ^{[3
]}

Kim, Jin-Young ^{[4
]}

Eckert, Juergen ^{[4
,5
]}

Lee, Min-Ha ^{[2
]}

机构：

[1] Kongju Natl Univ, Div Adv Mat Engn, Cheonan 331717, South Korea

[2] Korea Inst Ind Technol, Rare Met R&D Grp, Inchon 406840, South Korea

[3] US DOE, Ames Lab, Div Mat & Engn, Ames, IA 50011 USA

[4] Inst Complex Mat, IFW Dresden, D-01171 Dresden, Germany

[5] Tech Univ Dresden, Inst Mat Sci, D-01062 Dresden, Germany

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2016年 / 54卷

基金：

新加坡国家研究基金会;

关键词：

Tungsten; Nanocrystalline metals; Metallic glasses; Mechanical properties; Spark plasma sintering; Mechanical alloying and milling; METALLIC-GLASS; DEFORMATION; COMPOSITES; BEHAVIOR; POWDERS;

D O I：

10.1016/j.ijrmhm.2015.07.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanostructured tungsten composites were fabricated by spark plasma sintering of nanostructured composite powders. The composite powders, which were synthesized by mechanical milling of tungsten and Ni-based alloy powders, are comprised of alternating layers of tungsten and metallic glass several hundred nanometers in size. The mechanical behavior of the nanostructured W composite is similar to pure tungsten, however, in contrast to monolithic pure tungsten, some macroscopic compressive plasticity accompanies the enhanced maximum strength up to 2.4 GPa by introducing reinforcement. We have found that the mechanical properties of the composites strongly depend on the uniformity of the nano-grained tungsten matrix and reinforcement phase distribution. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：14 / 18

页数：5

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