Heterogeneous microstructure of an Al2O3dispersion strengthened Cu by spark plasma sintering and extrusion and its effect on tensile properties and electrical conductivity

doi:10.1016/j.msea.2018.06.010

	Heterogeneous microstructure of an Al2O3dispersion strengthened Cu by spark plasma sintering and extrusion and its effect on tensile properties and electrical conductivity
	Zhou, Dengshan 1,2; Wang, Xinkai 1,2; Muránsky, Ondrej 3; Wang, Xuerong 1; Xie, Yuehuang 4; Yang, Chao 5; Zhang, Deliang 1,2
刊名	Materials Science and Engineering A
	2018
卷号	730 页码:328-335
ISSN号	09215093
DOI	10.1016/j.msea.2018.06.010
英文摘要	Introducing coarse grains into nanocrystalline (NC) and ultrafine grained (UFG) metallic materials can lead to an excellent combination of strength and ductility. In this study, we produced Al2O3dispersion-strengthened (Al2O3-DS) Cu with heterogeneous microstructure by mechanical alloying (MA) of Cu-Al2O3powder mixture followed by spark plasma sintering (SPS) and hot extrusion (HE). For direct comparison, one sample was prepared by hot extrusion only without prior SPS of mechanically alloyed (MAed) powders. The microstructure of materials produced via a combination of SPS and HE possessed the heterogeneous microstructure consisting of Al2O3-free coarse grained (CG) Cu bands and Al2O3-rich UFG Cu regions. These different microstructural regions were found to play different roles on the tensile and electrical properties and their presence can be tuned to achieve desired mechanical and electrical properties. We also discuss the possible mechanisms responsible for the formation of the heterogeneous microstructure in the samples produced by a combined process of SPS and HE. © 2018 Elsevier B.V.
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25195]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang; 110819, China; 2.Institute of Ceramics and Powder Metallurgy, School of Materials Science and Engineering, Northeastern University, Shenyang; 110819, China; 3.Australian Nuclear Science and Technology Organization, Lucas Heights, NSW; 2234, Australia; 4.The State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai; 200240, China; 5.Shanghai Institute of Applied Physics, Chinese Academy of Sciences (CAS), Shanghai; 201800, China
推荐引用方式 GB/T 7714	Zhou, Dengshan,Wang, Xinkai,Muránsky, Ondrej,et al. Heterogeneous microstructure of an Al2O3dispersion strengthened Cu by spark plasma sintering and extrusion and its effect on tensile properties and electrical conductivity[J]. Materials Science and Engineering A,2018,730:328-335.
APA	Zhou, Dengshan.,Wang, Xinkai.,Muránsky, Ondrej.,Wang, Xuerong.,Xie, Yuehuang.,...&Zhang, Deliang.(2018).Heterogeneous microstructure of an Al2O3dispersion strengthened Cu by spark plasma sintering and extrusion and its effect on tensile properties and electrical conductivity.Materials Science and Engineering A,730,328-335.
MLA	Zhou, Dengshan,et al."Heterogeneous microstructure of an Al2O3dispersion strengthened Cu by spark plasma sintering and extrusion and its effect on tensile properties and electrical conductivity".Materials Science and Engineering A 730(2018):328-335.