Microstructure evolution, mechanical properties, and corrosion behavior of in-situ TiC/TC4 composites through Mo addition

IF 3.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Vacuum Pub Date : 2024-10-10 DOI:10.1016/j.vacuum.2024.113720

引用次数: 0

Abstract

To further improve the mechanical properties and corrosion resistance of the composites, in-situ TiC/TC4-xMo composites were fabricated. The effect of Mo content on the microstructure evolution, mechanical properties, and corrosion behavior of the composites was investigated. The results show that with the increase of Mo content, the amount of β-Ti phase and the size of the TiC particle increase. The mechanical properties and corrosion resistance of the composites can be significantly enhanced through Mo addition. The TiC/TC4 composites containing 10 wt% Mo exhibits superior mechanical properties and corrosion resistance. Grain refinement, load transfer, and solid solution strengthening are the main strengthening mechanisms for improving the strength of composites. In addition, the increase of the β-Ti content, the presence of TiC, and the solid solution of Mo elements contribute to enhancing the corrosion resistance of the composites.

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添加钼后原位 TiC/TC4 复合材料的微观结构演变、力学性能和腐蚀行为

为了进一步提高复合材料的机械性能和耐腐蚀性，研究人员在原位制备了 TiC/TC4-xMo 复合材料。研究了钼含量对复合材料微观结构演变、力学性能和腐蚀行为的影响。结果表明，随着 Mo 含量的增加，β-Ti 相的数量和 TiC 颗粒的尺寸都有所增加。添加 Mo 后，复合材料的机械性能和耐腐蚀性能显著提高。钼含量为 10 wt% 的 TiC/TC4 复合材料表现出更优越的机械性能和耐腐蚀性。晶粒细化、载荷传递和固溶强化是提高复合材料强度的主要强化机制。此外，β-Ti 含量的增加、TiC 的存在以及 Mo 元素的固溶也有助于增强复合材料的耐腐蚀性。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.