An enhanced strength Ni matrix composite reinforced by a 3D network structure of TiN nano-particles

Rui Wang; Guoliang Zhu; Wenzhe Zhou; Wei Wang; Donghong Wang; Anping Dong; Da Shu; Baode Sun

Materials & Design (Jun 2020)

An enhanced strength Ni matrix composite reinforced by a 3D network structure of TiN nano-particles

Rui Wang,
Guoliang Zhu,
Wenzhe Zhou,
Wei Wang,
Donghong Wang,
Anping Dong,
Da Shu,
Baode Sun

Affiliations

Rui Wang: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Guoliang Zhu: Corresponding author.; Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Wenzhe Zhou: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Wei Wang: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Donghong Wang: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Anping Dong: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Da Shu: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Baode Sun: Shanghai Key Laboratory of Advanced High-temperature Materials and Precision Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Journal volume & issue: Vol. 191

Abstract

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Strengthening is a critical issue for improving the mechanical properties of ceramic particles reinforced metal matrix composites (CPRMMCs). A Ni matrix composite reinforced by TiN nano-particles (TiNNP) with a three-dimensional (3D) network structure was synthesized via low-energy ball-milling (LEBM) and spark plasma sintering (SPS). The ultimate tensile strength (UTS) of the TiN/Ni composite is 690 MPa, an increase of 383% compared to that of the Ni matrix. The 3D network structure of TiN nano-particles formed at the grain boundaries refines the grains significantly and generates a high density of dislocations near the TiN/Ni interface, synergistically contributing to the enhanced strength. Ceramic particles of 3D network structure may be a potential solution to achieving superior properties of CPRMMCs.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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