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author:

Lai, Fuqiang (Lai, Fuqiang.) [1] | Hu, Anqiong (Hu, Anqiong.) [2] | Wu, Yiwan (Wu, Yiwan.) [3] | Bai, Hongbai (Bai, Hongbai.) [4] | Xue, Xin (Xue, Xin.) [5]

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Abstract:

High-performance lightweight composites are developed by integrating metal rubber (MR) into a zinc alloy (ZA8) matrix via squeeze casting. MR, comprising 304 stainless steel wires (SSWs) with diameters of 0.15 mm, forms 3D network skeletons with volume fractions of 8.8 vol% (S1), 11.1 vol% (S2), and 13.4 vol% (S3), respectively. The preparation parameters of the composites are optimized, and their microhardness is investigated. Special attention is paid to the ultimate compression and shear performance at 25, 150, and 250 °C. The microstructure and failure analysis are performed via scanning electron microscopy. The results reveal a 48.0% increase in microhardness at composite interfaces relative to ZA8. At 25 °C, S2 possesses an ultimate compressive strength (UCS) of 401.4 MPa, which is 33.7% higher than that of ZA8. At 150 and 250 °C, S3 exhibits UCS values of 180.3 and 74.3 MPa, exceeding those of ZA8 by 61.7% and 110.5%, respectively. Meanwhile, the ultimate shear strength of composites slightly drops below that of the matrix: the corresponding value of S1 specimen (158.4 MPa) at 250 °C is 11.5% below that of ZA8. Therefore, compression and shear failure mechanisms of MR/ZA8 composites are quite intricate, involving SSW separation, necking, and ZA8 fractures. © 2023 Wiley-VCH GmbH.

Keyword:

Compressive strength Ductile fracture Metallic matrix composites Microhardness Rubber Scanning electron microscopy Squeeze casting Zinc alloys

Community:

  • [ 1 ] [Lai, Fuqiang]Institute of Metal Rubber & Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China
  • [ 2 ] [Hu, Anqiong]Institute of Metal Rubber & Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China
  • [ 3 ] [Wu, Yiwan]Institute of Metal Rubber & Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China
  • [ 4 ] [Bai, Hongbai]Institute of Metal Rubber & Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China
  • [ 5 ] [Xue, Xin]Institute of Metal Rubber & Vibration Noise, School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou; 350116, China

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Source :

Advanced Engineering Materials

ISSN: 1438-1656

Year: 2023

Issue: 22

Volume: 25

3 . 4

JCR@2023

3 . 4 0 0

JCR@2023

JCR Journal Grade:2

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 1

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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