A numerical study of the mechanical and fracture properties of ZTA (zirconia toughened alumina)p/40Cr steel spatial spherical dot matrix composite

Jiang, Chaoyu; Lu, Dehong; Zhou, Ming; Kou, Baohong; Gong, Wenhao

doi:10.1016/j.ijsolstr.2022.112047

Cited by 4 publications

(1 citation statement)

References 40 publications

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“…Commonly used ceramic particles are TiC, TiN, SiC, WC, etc. [12][13][14][15][16]. Among these hard ceramic particles, TiC has excellent physical and chemical properties such as a high melting point, high hardness, low density, wear resistance, and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Effect of TiC Content on Microstructure and Wear Performance of 17-4PH Stainless Steel Composites Manufactured by Indirect Metal 3D Printing

Huang,

Mei,

et al. 2023

Materials

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In order to improve the performance of 17-4PH under wear conditions (e.g., gears, etc.) and reduce the cost of metal additive manufacturing, TiC needs to be added to 17-4PH to improve its wear resistance. Micron-sized TiC-reinforced 17-4PH stainless steel composites with different contents (0–15 wt%) have been prepared by fused filament fabrication 3D printing for the first time. The effects of TiC content on the structure and properties of composites were studied by XRD, SEM, and sliding wear. The obtained results show that the microstructure of TiC-reinforced 17-4PH stainless steel composites mainly consists of austenite. With the increase in TiC content, the grain size is obviously refined, and the average grain size decreases from 65.58 μm to 19.41 μm. The relative densities of the composites are maintained above 95% with the addition of TiC. The interfaces between TiC particles and the 17-4PH matrix are metallurgical bonds. The hardness of the composites increases and then decreases with increasing TiC content, and the maximum hardness (434 HV) is obtained after adding 10 wt.% of TiC content. The wear rate of the composites was reduced from 2.191 × 10−5 mm3 /(N‧m) to 0.509 × 10−5 mm3 /(N‧m), which is a 3.3-fold increase in wear resistance. The COF value declines with the addition of TiC. The reasons for the significant improvement in the composites’ performance are fine grain strengthening, solid solution strengthening, and second phase strengthening. The wear mechanisms are mainly abrasive and adhesive wear. Compared to the 10 wt% TiC composites, the 15 wt% TiC composites show limited improvement in wear resistance due to more microcracks and TiC agglomeration.

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Section: Introductionmentioning

confidence: 99%

Effect of TiC Content on Microstructure and Wear Performance of 17-4PH Stainless Steel Composites Manufactured by Indirect Metal 3D Printing

Huang,

Mei,

et al. 2023

Materials

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Microstructure and Mechanical Properties Evolution of W@WC/Fe Core–Shell Bar‐Reinforced Iron Matrix Composites: Effect of In‐situ Solid Diffusion Time

Bai,

Wang,

Kang

et al. 2024

Adv Eng Mater

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To improve the strength and toughness of conventional particle‐reinforced iron matrix composites, W@WC/Fe core–shell bar‐reinforced iron matrix composites (CBIMCs) are synthesized by casting and in‐situ solid‐phase diffusion method. These composites, which have an architecture similar to concrete, consist of a core of residual W bar and a shell of gradient‐structured WC‐Fe layer. The effect of in‐situ solid diffusion time on the evolution of microstructure and mechanical properties of the composites is investigated. It is observed that for in‐situ solid diffusion times ranging from 3 to 24 h, the reinforcement in the composites remained as W@WC/Fe core–shell bars. As the solid diffusion time increased, the diameter of the W core gradually decreased, and the thickness of the WC‐Fe shell layer increased. At a solid diffusion time of 30 h, the reinforcement transitioned to the WC‐Fe composite bar. Additionally, with longer solid diffusion times, the WC particles transformed from a triangular prism shape to a truncated octahedron. The composite prepared at 18 h exhibits the highest ultimate compression strength and strain, reaching values of 1100 ± 18 MPa and 35.5 ± 1.3%, respectively. This excellent ultimate compression strength is mainly due to the WC particles, which enhanced load transfer strengthening and dislocation strengthening. Moreover, the metal W core and iron matrix effectively hinder microcrack propagation, thus contributing to the enhanced toughness of the composite.

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Numerical and experimental research on the bearing characteristics and failure mechanism of zinc-cast socket termination for wire rope. Part 1: Methodology and theory

Su,

Xia,

Deng

et al. 2025

Engineering Failure Analysis

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A numerical study of the mechanical and fracture properties of ZTA (zirconia toughened alumina)p/40Cr steel spatial spherical dot matrix composite

Cited by 4 publications

References 40 publications

Effect of TiC Content on Microstructure and Wear Performance of 17-4PH Stainless Steel Composites Manufactured by Indirect Metal 3D Printing

Effect of TiC Content on Microstructure and Wear Performance of 17-4PH Stainless Steel Composites Manufactured by Indirect Metal 3D Printing

Microstructure and Mechanical Properties Evolution of W@WC/Fe Core–Shell Bar‐Reinforced Iron Matrix Composites: Effect of In‐situ Solid Diffusion Time

Numerical and experimental research on the bearing characteristics and failure mechanism of zinc-cast socket termination for wire rope. Part 1: Methodology and theory

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