Kexing Song

Henan Academy of Sciences

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Xiuhua Guo

Henan University of Science and Technology

Yanjun Zhou

Henan University of Science and Technology

Shaolin Li

North China Electric Power University

Chu Cheng

Henan University of Science and Technology

Xiaowen Peng

Henan University of Science and Technology

Hao Hu

First Affiliated Hospital of Henan University of Science and Technology

Haoyan Cheng

Dongguan University of Technology

Xu Wang

Xi'an Jiaotong University

Shuhua Liang

National Engineering Research Center of Electromagnetic Radiation Control Materials

Tao Huang

Huazhong University of Science and Technology

Cooperative Institutions

Henan University of Science and Technology

203

Chinese Academy of Sciences

Northwestern Polytechnical University

Henan Academy of Sciences

Central South University

Shanghai Jiao Tong University

Zhengzhou University

University of Science and Technology Beijing

University of Chinese Academy of Sciences

Zhejiang University

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Interaction mechanism of elements and second phase characteristics in as-cast Cu–15Ni–8Sn–(1Al–0.1Y) alloy

Materials Science and Technology (2024)

Shaodan Yang Yanjun Zhou Chaomin Zhang Kexing Song Yang Ran

In this article, the effects of Al and Y elements on the microstructure and mechanical properties of Cu–15Ni–8Sn alloy were studied. The interaction mechanism between elements is proved by first-principles calculation. The results show that the strength of Cu–15Ni–8Sn–1Al–0.1Y alloy reaches 760 MPa, and the hardness of matrix (α-Cu) and Sn-rich phase (γ) are 292.43 and 341.65 HV, respectively, which are 23.78%, 97.80% and 65.21% higher than those of Cu–15Ni–8Sn alloy, respectively. The formation of a large number of dispersed nano-scale Ni 3 Al second phase is the main reason for the great improvement of the strength of the alloy. In addition, the solid solution of Al and the formation of the Ni 17 Y 2 phase improve the hardness of the Sn-rich phase.

10.1177/02670836231221399

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Citations (0)

Enhancement mechanism of carbon fiber on the current-carrying tribological properties of Cf-Al2O3/Cu composites

Wear (2023)

Shaolin Li Chaofan Jia Xiuhua Guo Kexing Song Xu Wang

Powder Metallurgy

Electric arc

Carbon fibers

10.1016/j.wear.2023.205033

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Citations (11)

Positively-charged Graphene Mediate the Crystal Growth and Microstructure to Achieve Ultrahigh Mechanical Properties of Electrodeposited Copper Foils

Journal of Materials Research and Technology (2025)

Peng Xu Weiwei Lu Qianqian Zhu Hao Hu Haitao Liu

Crystal (programming language)

10.1016/j.jmrt.2025.02.133

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Organic polysulfanes grafted on porous graphene as an electrode for high-performance lithium organosulfur batteries

Journal of Power Sources (2021)

Hao Hu Yibo Hu Haoyan Cheng Shuge Dai Kexing Song

Organosulfur compounds

10.1016/j.jpowsour.2021.229617

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Citations (28)

Precipitation evolution of Al-Zn-Mg-Cu-(Ag) alloys with a low Zn/Mg ratio

Journal of Material Science and Technology (2024)

Qianqian Zhu Guohua Wu Lingfei Cao Yan Zou Hui Song

10.1016/j.jmst.2023.12.071

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Citations (12)

Strategy for co-enhancement of corrosion resistance-strength of Cu- 7Ni-3Al-1Fe-1Mn alloy: rare earth Sm microalloying

Materials Today Communications (2024)

Qiuli Han Shizhong An Kexing Song Haitao Liu Yanjun Zhou

10.1016/j.mtcomm.2024.109195

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Influence of low-temperature annealing temperature on the evolution of the microstructure and mechanical properties of Cu-Cr-Ti-Si alloy strips

Materials Science and Engineering A (2020)

Jingzhao Yang Kun Bu Kexing Song Yanjun Zhou Tao Huang

10.1016/j.msea.2020.140120

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Citations (27)

Dislocation motion induced by pulse current in Ti/Al bimetal composite observed by in-situ TEM

Materials Characterization (2024)

Tao Huang Binghui Xing Kexing Song Nan Xiang Liujie Xu

Bimetal

10.1016/j.matchar.2024.114096

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Citations (4)

Arc erosion resistance of WC/CuCr30 composites based on changing of Cr particle morphology and orientation

Journal of Materials Research and Technology (2023)

Kaiyue Duan Xiuhua Guo Kexing Song Xu Wang Feng Jiang

CuCr30 composite was commonly applied in medium and low voltage vacuum interrupters. The WC/CuCr30 composites based on changing of Cr particle morphology and orientation were successfully prepared by vacuum hot press sintering and hot extrusion, and the arc erosion resistance behavior at different voltages along the deformation direction of Cr particles was investigated on the JF04C electrical contact material testing system. The microstructure characterization of WC/CuCr30 composites shows that the Cr particles in the WC/CuCr30 composite have been elongated and the long axis direction is close to parallel to the extrusion direction after the hot extrusion deformation. Compared with the longitudinal section, the thermal conductivity of CuCr30 and WC/CuCr30 composites in the cross section is increases by 3.75% and 3.63%, respectively. The electrical contact testing results under different voltages shows that the addition of WC particles can extend the service life of the CuCr30 composite, and the operation times of WC/CuCr30 composite (4850 times) increases by 34.72% compared to CuCr30 composite (3600 times) at 30 V DC. The welding force decreases more obviously with the increase of the voltage, and the average welding force of WC/CuCr30 composite decreases by 8.57% and 20.9% at 24 V DC and 30 V DC compared with CuCr30, respectively. The arc erosion mechanism analysis shows that addition of WC particles is beneficial for the decrease of arc duration. And WC particles can effectively inhibit the arc erosion process and delay the formation of bumps and pits.

Particle (ecology)

Electric arc

10.1016/j.jmrt.2023.05.116

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Citations (10)

Effects of microalloying elements added by in situ synthesis on the microstructure of WCu composites

Nanotechnology Reviews (2022)

Chu Cheng Ziwei Song Lingfeng Wang Long Zhi Zhao Lisha Wang

Abstract The addition of microalloying elements improves the microstructure and properties of copper-based materials. In this study, WCu composites are synthesized in situ with Fe, Ni, or Mn as microalloying elements, and the effects of each element on the microstructural characteristics of the obtained composite are investigated. Fe, Ni, and Mn can be added in situ to WCu composites by thermite reduction. Increasing the temperature is not conducive to the reduction of MnO 2 by Al. Ni, Fe, and Mn were well dissolved in the copper matrix, and their contents decreases in turn, while the Al content in the matrix increases in turn. Mn clearly reduces the size of tungsten particles, and the size reduction effect of the microalloying elements on tungsten particles follows the order Mn > Fe > Ni. The effect on the wettability of the interface follows the order Ni > Mn > Fe. Increasing the interfacial wetting is not conducive to the refinement of tungsten particles.

Thermite

Matrix (chemical analysis)

10.1515/ntrev-2022-0045

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Citations (8)