DOAJ Open Access 2021

Effect of secondary carbides on the core-rim structure evolution of TiC-based cermets

Min Chen Xuefeng Zhang Xuan Xiao Haiquan Zhao

Abstrak

Herein, the effect of adding VC with different contents and Mo _2 C, WC and TaC on the core-rim structure evolution of TiC-based cermets was investigated using x-ray diffraction, scanning electron microscopy and energy-dispersive spectroscopy. Results show that the added secondary carbides exhibiting the same crystal stucture as TiC are prone to solid dissolution in TiC grains and change the core-rim stuctures of TiC-based cermets. With the addition of only VC, (Ti,V)C is the main component in the black core-grey rim structure and increasing the VC content is beneficial for promoting the dissolution process of cores. With the addition of multiple carbides, the core-rim structure in cermet Ta-7 is effectively improved, showing a high percentage of white core-grey rim structures, and the mechanical properties are improved.

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials Chemical technology

Penulis (4)

Min Chen

Xuefeng Zhang

Xuan Xiao

Haiquan Zhao

Format Sitasi

APA MLA BibTeX

Chen, M., Zhang, X., Xiao, X., Zhao, H. (2021). Effect of secondary carbides on the core-rim structure evolution of TiC-based cermets. https://doi.org/10.1088/2053-1591/ac0d92

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Informasi Jurnal

Tahun Terbit: 2021
Sumber Database: DOAJ
DOI: 10.1088/2053-1591/ac0d92
Akses: Open Access ✓