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杨涛,陈洪胜,王文先,张宇阳,刘润峰.基于SPS-热轧法钨颗粒增强铝基复合材料微观组织及力学性能研究[J].稀有金属材料与工程(英文),2020,49(11):3702~3708.[Yang Tao,Chen Hongsheng,Wang Wenxian,Zhang Yuyang and Liu Ruifeng.Microstructures and mechanical properties of tungsten particle reinforced 6061Al composites fabricated by SPS and hot rolling[J].Rare Metal Materials and Engineering,2020,49(11):3702~3708.]
Microstructures and mechanical properties of tungsten particle reinforced 6061Al composites fabricated by SPS and hot rolling
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Received:December 17, 2019  Revised:January 21, 2020
DOI:
Key words: spark plasma sintering  Wp/6061Al composites  microstructure  mechanical properties  electrical resistivity
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Author NameAffiliation
Yang Tao,Chen Hongsheng,Wang Wenxian,Zhang Yuyang and Liu Ruifeng  
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Abstract:
      In this study, tungsten particle (Wp) reinforced 6061Al matrix composites with different volume fractions (1~7%) were fabricated by spark plasma sintering (SPS) followed by hot-rolling. The effects of Wp content on the microstructure, mechanical properties and electrical resistivity of the as-rolled composites were investigated. The results show that the W particles were homogeneously distributed in the metal matrix, achieving excellent metallurgical bonding. At the interface of Wp/6061Al, element solid solution and WAl12 intermetallics were formed during the fabrication process. The mechanical test results show that, with the increase of W volume fraction, relative density and ductility of the as-rolled composites decreased while the tensile strength first increased and then decreased. It is noteworthy that both high tensile strength and ductility were obtained by the composites with 1 and 3 vol.% Wp, being 192.85 MPa ,16.84% and 315.18 MPa ,11.93%, respectively. Besides, the fabricated Wp reinforced 6061Al matrix composites had excellent electrical conductivity and the increase of Wp content had a little influence on the electrical conductivity.