A well-balanced strength and electrical conductivity in rolled composite prepared by in-situ TiB2p/Cu composite powder

Hao Shi; Fei Cao; Tongle Wang; Haidong Zhang; Huaibao Gao; Haotian Liu; Lei Gao; Juntao Zou; Yihui Jiang; Shuhua Liang

Journal of Materials Research and Technology (Nov 2023)

A well-balanced strength and electrical conductivity in rolled composite prepared by in-situ TiB2p/Cu composite powder

Hao Shi,
Fei Cao,
Tongle Wang,
Haidong Zhang,
Huaibao Gao,
Haotian Liu,
Lei Gao,
Juntao Zou,
Yihui Jiang,
Shuhua Liang

Affiliations

Hao Shi: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China
Fei Cao: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China
Tongle Wang: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China
Haidong Zhang: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China
Huaibao Gao: National Engineering Laboratory for Superconducting Materials, Western Superconducting Technologies Co., Ltd, Xi'an, Shaanxi 710018, China
Haotian Liu: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China
Lei Gao: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China
Juntao Zou: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China; Corresponding author. Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China.
Yihui Jiang: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China; Corresponding author. Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China.
Shuhua Liang: School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China; Engineering Research Center of Conducting Materials and Composite Technology, Ministry of Education, Xi'an, Shaanxi 710048, China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi'an, Shaanxi 710048, China; Corresponding author. School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, China.

Journal volume & issue: Vol. 27
pp. 1 – 10

Abstract

Read online

The TiB2p/Cu composites were prepared by current-assisted vacuum hot pressing (CAVHP) combined with rolling using in-situ spherical TiB2p/Cu composite powder as raw material. The effects of rolling deformation on the microstructure and properties of the sintered TiB2p/Cu composite were investigated. The results show that CAVHP leads to a rapid densification of the composite powder compact, and the subsequent rolling deformation is able to eliminate the unclosed pores and achieve a uniform distribution of TiB2p. The dynamic recrystallization during cold rolling refines the Cu matrix grains to ultrafine grains with an average grain size of 0.47 μm. The cold rolled TiB2p/Cu composite obtains a remarkable comprehensive performance with ultimate tensile strength, yield strength and electrical conductivity of 621 MPa, 567 MPa and 86.3% IACS, respectively. In addition, the strengthening and fracture mechanism of the cold rolled TiB2p/Cu composite are analyzed. This work will explore a new technological solution for the preparation of high-performance Cu matrix composites.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal

Abstract

Keywords