Erosion behaviour of B<sub>4</sub>C/TiB<sub>2</sub>/Mo ceramic nozzles-Reference-Cited by-同舟云学术

Erosion behaviour of B₄C/TiB₂/Mo ceramic nozzles

Published:2024-05-27 Issue:7 Volume:115 Page:529-539
ISSN:1862-5282
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Li Tong¹,Zhang Kai¹,Liu Qiancheng¹,Feng Yutong¹,Chen Kairuo¹,Lin Yijie¹,Zhao Yichen¹,Sun Junlong¹,Liu Changxia¹^ORCID

Affiliation:

1. School of Transportation , Ludong University , Yantai 264025 , Shandong Province , P.R. China

Abstract

Abstract B4C/TiB2/Mo ceramic nozzles were obtained by uniaxial hot-pressing. The mechanical properties and erosion behaviour of B4C/TiB2/Mo ceramic nozzles were investigated. Volume erosion rate was used to rank the erosion behaviour of the B4C/TiB2/Mo ceramic nozzles. The relationship between mechanical properties and the volume erosion rate of the nozzles was discussed. X-ray diffraction analysis showed that in-situ reaction to form TiB2 happened during sintering. Scanning electron microscopy was employed to observe the fracture surfaces and eroded surfaces of B4C/TiB2/Mo ceramic nozzles. A model of erodent particles and nozzle during the erosion test was established using the JH2 model. The maximum von Mises stresses on the entry, middle and exit surfaces of the nozzle were calculated. The result showed that the hardness played a key role in influencing the erosion behaviour of B4C/TiB2/Mo ceramic nozzles. Erosion mechanisms of B4C/TiB2/Mo ceramic nozzles at the entry, middle and exit bore area were mainly brittle fracture, fracture & plowing and micro-plowing, respectively.

Publisher

Walter de Gruyter GmbH

Link

https://www.degruyter.com/document/doi/10.1515/ijmr-2023-0298/pdf

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