Mechanical Properties of Cu-W Interpenetrating-Phase Composites with Different W-Skeleton

被引：19
作者：
Han, Ying [1 ]
Li, Sida [1 ]
Cao, Yundong [1 ]
Li, Shujun [2 ]
Yang, Guangyu [3 ]
Yu, Bo [4 ]
Song, Zhaowei [4 ]
Wang, Jian [3 ]
机构：
[1] Shenyang Univ Technol, Sch Elect Engn, Shenyang 110870, Peoples R China
[2] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[3] Northwest Inst Nonferrous Met Res, State Key Lab Porous Met Mat, Xian 710016, Peoples R China
[4] State Key Lab Light Alloy Casting Technol High En, Shenyang 110022, Peoples R China
来源：
METALS | 2022年 / 12卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Cu-W composite; ordered skeleton; mechanical properties; energy absorption; MICROSTRUCTURE; ALLOY;
D O I：
10.3390/met12060903
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, copper-tungsten (Cu-W) composites with a cubic and rhombic dodecahedron W-skeleton were fabricated by the infiltration of Cu melt into a three-dimensionally printed W scaffold. The effects of the skeleton structure on the mechanical properties and energy-absorbing characteristics of the Cu-W interpenetrating-phase composite were investigated and compared with those of commercial Cu-W composite fabricated by powder metallurgy. The results indicated that the mechanical properties of the studied Cu-W interpenetrating-phase composites were mainly related to the properties of their ordered skeletons. Compared to the dodecahedron W-skeleton Cu-W composites, cubic-W-skeleton Cu-W composites exhibited higher strengths but lower absorbed energy. The Cu-W composites with ordered W-skeletons displayed much higher energy absorption than the commercial Cu-W ones. By adjusting the ordered W-skeleton structure contained in the composite, the strength and deformation behavior of the Cu-W composite can be effectively improved, which provides a guide to optimizing the mechanical properties and energy absorption of Cu-W composites.
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页数：12
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