Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites

Zhao, Qiqi; Ju, Boyu; Zhao, Keguang; Zhan, Junhai; Liu, Mingda; Zhang, Ningbo; Qian, Jinrui; Xiu, Ziyang; Kang, Pengchao; Yang, Wenshu

doi:10.3390/ma15238484

Open AccessArticle

Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites

by

Qiqi Zhao

^1,†,

Boyu Ju

^1,*,†

,

Keguang Zhao

²,

Junhai Zhan

³,

Mingda Liu

⁴,

Ningbo Zhang

⁵,

Jinrui Qian

¹,

Ziyang Xiu

¹,

Pengchao Kang

^1,*

and

Wenshu Yang

^1,*

¹

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

²

Huazhong Institute of Electro-Optics, Wuhan 430074, China

³

Shanghai Aerospace System Engineering Research Institute, Shanghai 201108, China

⁴

CASIC Space Engineering Development Co., Ltd., Xinzhou 431400, China

⁵

Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China

^*

Authors to whom correspondence should be addressed.

^†

These authors contributed equally to this work and they are co-first authors of the article.

Materials 2022, 15(23), 8484; https://doi.org/10.3390/ma15238484

Submission received: 7 November 2022 / Revised: 18 November 2022 / Accepted: 22 November 2022 / Published: 28 November 2022

(This article belongs to the Special Issue Commemorating the Launch of the Section 'Metals and Alloys')

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Abstract

In the present study, the effects of SiC nanowires (SiCnws) with diameters of 100 nm, 250 nm and 450 nm on the microstructure and mechanical behavior of 20 vol.% SiCnws/6061Al composites prepared by pressure infiltration were studied. It was found that the interface between SiCnws and Al matrix was well bonded, and no interface product was found. The thicker SiCnws are beneficial to improve the density. In addition, the bamboo-like and bone-like morphologies of SiCnws produce a strong interlocking effect between SiCnws and Al, which helps to improve the strength and plasticity of the material. The tensile strength of the composite prepared by SiCnws with a diameter of 450 nm reached 544 MPa. With a decrease in the diameter of SiCnws, the strengthening effect of SiCnws increases. The yield strength of SiCnws/6061Al composites prepared by 100 nm is 13.4% and 28.5% higher than that of 250 nm and 450 nm, respectively. This shows that, in nano-reinforced composites, the small-size reinforcement has an excellent improvement effect on the properties of the composites. This result has a guiding effect on the subsequent composite structure design.

Keywords: SiC nanowires; Al matrix composite; mechanical characterization; interface

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MDPI and ACS Style

Zhao, Q.; Ju, B.; Zhao, K.; Zhan, J.; Liu, M.; Zhang, N.; Qian, J.; Xiu, Z.; Kang, P.; Yang, W. Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites. Materials 2022, 15, 8484. https://doi.org/10.3390/ma15238484

AMA Style

Zhao Q, Ju B, Zhao K, Zhan J, Liu M, Zhang N, Qian J, Xiu Z, Kang P, Yang W. Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites. Materials. 2022; 15(23):8484. https://doi.org/10.3390/ma15238484

Chicago/Turabian Style

Zhao, Qiqi, Boyu Ju, Keguang Zhao, Junhai Zhan, Mingda Liu, Ningbo Zhang, Jinrui Qian, Ziyang Xiu, Pengchao Kang, and Wenshu Yang. 2022. "Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites" Materials 15, no. 23: 8484. https://doi.org/10.3390/ma15238484

APA Style

Zhao, Q., Ju, B., Zhao, K., Zhan, J., Liu, M., Zhang, N., Qian, J., Xiu, Z., Kang, P., & Yang, W. (2022). Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites. Materials, 15(23), 8484. https://doi.org/10.3390/ma15238484

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Effect of Reinforcement Size on Mechanical Behavior of SiC-Nanowires-Reinforced 6061Al Composites

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