The influence of components on the high-temperature performance and cutting performance of Si3N4-based ceramic tools

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS International Journal of Applied Ceramic Technology Pub Date : 2024-09-25 DOI:10.1111/ijac.14924

Weiwei Xu, Zuoxuan Zhang, Boxiang Wang, Liyi Jiang, Guodong Yan, Li Guan

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Abstract

Three kinds of Si₃N₄-based ceramic tools (single-phase Si₃N₄, Si₃N₄/(W,Ti)C, and Si₃N₄/(W,Ti)C/Ni) were fabricated by microwave sintering. The phase composition, toughening mechanism, mechanical properties at room and high temperatures (800°C), and cutting performance of Si₃N₄-based ceramic tool materials with different additives were investigated. The results showed that the addition of (W,Ti)C and Ni had a significant effect on improving the mechanical properties at room temperature, although it reduced the phase transition conversion rate of Si₃N₄. Si₃N₄/(W,Ti)C tools had good high-temperature stability, while Si₃N₄/(W,Ti)C/Ni tools had a decrease of about 31.6% in high-temperature hardness and a decrease of 13.7% in high-temperature flexure strength. Under the premise of ensuring a certain level of fracture toughness, high-temperature hardness is the main influencing factor on the cutting life of cutting tools. The Si₃N₄/(W,Ti)C tools exhibit superior cutting performance whose cutting life reaches to 50.67 min which was 1.37–3.27 times longer than the other two ceramic cutting tools at the same cutting parameters when continuous dry cutting T10A. In addition, high-temperature flexure strength limits the choice of cutting speed, and lower high-temperature flexure strength can lead to rapid tool failure.

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组分对si3n4基陶瓷刀具高温性能和切削性能的影响

采用微波烧结法制备了单相Si3N4、Si3N4/(W,Ti)C和Si3N4/(W,Ti)C/Ni三种Si3N4基陶瓷工具。研究了添加不同添加剂的si3n4基陶瓷刀具材料的相组成、增韧机理、室温和高温（800℃）力学性能和切削性能。结果表明，（W,Ti）C和Ni的加入对Si3N4的室温力学性能有显著的改善作用，但降低了Si3N4的相变转化率。Si3N4/(W,Ti)C刀具具有良好的高温稳定性，而Si3N4/(W,Ti)C/Ni刀具的高温硬度降低约31.6%，高温抗弯强度降低约13.7%。在保证一定断裂韧性的前提下，高温硬度是影响刀具切削寿命的主要因素。Si3N4/(W,Ti)C刀具在连续干切削T10A时表现出优异的切削性能，在相同切削参数下，切削寿命达到50.67 min，是其他两种陶瓷刀具的1.37 ~ 3.27倍。此外，高温弯曲强度限制了切削速度的选择，较低的高温弯曲强度会导致刀具快速失效。

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来源期刊

International Journal of Applied Ceramic Technology 工程技术-材料科学：硅酸盐

CiteScore

3.90

自引率

9.50%

发文量

280

审稿时长

4.5 months

期刊介绍： The International Journal of Applied Ceramic Technology publishes cutting edge applied research and development work focused on commercialization of engineered ceramics, products and processes. The publication also explores the barriers to commercialization, design and testing, environmental health issues, international standardization activities, databases, and cost models. Designed to get high quality information to end-users quickly, the peer process is led by an editorial board of experts from industry, government, and universities. Each issue focuses on a high-interest, high-impact topic plus includes a range of papers detailing applications of ceramics. Papers on all aspects of applied ceramics are welcome including those in the following areas: Nanotechnology applications; Ceramic Armor; Ceramic and Technology for Energy Applications (e.g., Fuel Cells, Batteries, Solar, Thermoelectric, and HT Superconductors); Ceramic Matrix Composites; Functional Materials; Thermal and Environmental Barrier Coatings; Bioceramic Applications; Green Manufacturing; Ceramic Processing; Glass Technology; Fiber optics; Ceramics in Environmental Applications; Ceramics in Electronic, Photonic and Magnetic Applications;