Gemeda Birhane Assefa, Sinha Devendra Kumar, Singh Gyanendra Kumar, Alghtani Abdulaziz H, Tirth Vineet, Algahtani Ali, Mengesha Getinet Asrat, Ahmed Gulam Mohammed Sayeed, Hossain Nazia
Department of Mechanical Engineering, Program of Mechanical Design and Manufacturing Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama 1888, Ethiopia.
Department of Mechanical Engineering, College of Engineering, Taif University, P.O. Box 11099, Taif 21944, Makkah, Saudi Arabia.
Materials (Basel). 2022 Aug 12;15(16):5525. doi: 10.3390/ma15165525.
Titanium metal matrix composites/TMMCs are reinforced ceramic reinforcements that have been developed and used in the automotive, biological, implants, and aerospace fields. At high temperatures, TMMCs can provide up to 50% weight reduction compared to monolithic super alloys while maintaining comparable quality or state of strength. The objective of this research was the analysis and evaluation of the effect/influence of different sintering temperatures, reinforcement size dependence of mechanical properties, and fortification mechanisms on the particle size distribution of BC, SiC, and ZrO reinforced TMMCs that were produced and fabricated by powder metallurgy/PM. SEM, XRD, a Rockwell hardness tester, and the Archimedes principle were used in this analysis. The composites' hardness, approximation, tensile, yielding, and ultimate strength were all increased. As the composite was reinforced with low-density ceramics material and particles, its density decreased. The volume and void content in all the synthesized specimens is below 1%; this is the result of good sample densification, mechanical properties and uniform distribution of the reinforced particle samples; 5% BC, 12.5% SiC, 7.5% ZrO, 75% Ti develop higher mechanical properties, such as higher hardness, approximation tensile, yielding, and ultimate strength and low porosity.
钛基金属基复合材料（TMMCs）是一种增强陶瓷增强材料，已在汽车、生物、植入物和航空航天领域得到开发和应用。在高温下，与整体高温合金相比，TMMCs可减轻高达50%的重量，同时保持相当的质量或强度状态。本研究的目的是分析和评估不同烧结温度、机械性能对增强体尺寸的依赖性以及强化机制对通过粉末冶金（PM）生产和制造的BC、SiC和ZrO增强TMMCs颗粒尺寸分布的影响。本分析使用了扫描电子显微镜（SEM）、X射线衍射仪（XRD）、洛氏硬度计和阿基米德原理。复合材料的硬度、近似值、拉伸强度、屈服强度和极限强度均有所提高。由于复合材料用低密度陶瓷材料和颗粒增强，其密度降低。所有合成试样中的体积和孔隙含量均低于1%；这是良好的样品致密化、机械性能和增强颗粒样品均匀分布的结果；5%的BC、12.5%的SiC、7.5%的ZrO、75%的Ti具有更高的机械性能，如更高的硬度、近似拉伸强度、屈服强度和极限强度以及低孔隙率。
