Dwivedi Shashi Prakash, Sharma Shubham, Li Changhe, Zhang Yanbin, Singh Rajesh, Kumar Abhinav, Awwad Fuad A, Khan M Ijaz, Ismail Emad A A
Lloyd Institute of Engineering & Technology, Plot No. 3, Knowledge Park II, Greater Noida 201306, Uttar Pradesh, India.
School of Mechanical and Automotive Engineering, Qingdao University of Technology, 266520 Qingdao, China.
ACS Omega. 2024 Apr 17;9(17):18813-18826. doi: 10.1021/acsomega.3c07837. eCollection 2024 Apr 30.
This study explored the impact of varying weight percentages of TiMoVWCr high-entropy alloy (HEA) powder addition on A356 composites produced using friction stir processing (FSP). Unlike previous research that often focused on singular aspects, such as mechanical properties, or microstructural analysis, this investigation systematically examined the multifaceted performance of A356 composites by comprehensively assessing the microstructure, interfacial bonding strength, mechanical properties, and wear behavior. The study identified a uniform distribution of TiMoVWCr HEA powder in the composition A356/2%Ti2%Mo2%V2%W2%Cr, highlighting the effectiveness of the FSP technique in achieving homogeneous dispersion. Strong bonding between the reinforcement and matrix material was observed in the same composition, indicating favorable interfacial characteristics. Mechanical properties, including tensile strength and hardness, were evaluated for various compositions, demonstrating significant improvements across the board. The addition of 2%Ti2%Mo2%V2%W2%Cr powder enhanced the tensile strength by 36.39%, while hardness improved by 62.71%. Similarly, wear resistance showed notable enhancements ranging from 35.56 to 48.89% for different compositions. Microstructural analysis revealed approximately 1640.59 grains per square inch for the A356/2%Ti2%Mo2%V2%W2%Cr processed composite at 500 magnifications. In reinforcing Al composites with Ti, Mo, V, W, and Cr high-entropy alloy (HEA) particles, each element imparted distinct benefits. Titanium (Ti) enhanced strength and wear resistance, molybdenum (Mo) contributed to improved hardness, vanadium (V) promoted hardenability, tungsten (W) enhanced wear resistance, and chromium (Cr) provided wear resistance and hardness. Anticipating the potential applications of the developed composite, the study suggests its suitability for the aerospace sector, particularly in casting lightweight yet high-strength parts such as aircraft components, engine components, and structural components, underlining the significance of the investigated TiMoVWCr HEA powder-modified A356 composites.
本研究探讨了添加不同重量百分比的TiMoVWCr高熵合金（HEA）粉末对采用搅拌摩擦加工（FSP）制备的A356复合材料的影响。与以往通常侧重于单一方面（如力学性能或微观结构分析）的研究不同，本调查通过全面评估微观结构、界面结合强度、力学性能和磨损行为，系统地研究了A356复合材料的多方面性能。研究发现TiMoVWCr HEA粉末在A356/2%Ti2%Mo2%V2%W2%Cr成分中分布均匀，突出了搅拌摩擦加工技术在实现均匀分散方面的有效性。在相同成分中观察到增强相和基体材料之间有很强的结合力，表明具有良好的界面特性。对各种成分的力学性能（包括抗拉强度和硬度）进行了评估，结果表明各方面都有显著改善。添加2%Ti2%Mo2%V2%W2%Cr粉末使抗拉强度提高了36.39%，硬度提高了62.71%。同样，不同成分的耐磨性也有显著提高，提高幅度在35.56%至48.89%之间。微观结构分析显示，在500倍放大倍数下，A356/2%Ti2%Mo2%V2%W2%Cr加工复合材料每平方英寸约有1640.59个晶粒。在用Ti、Mo、V、W和Cr高熵合金（HEA）颗粒增强铝基复合材料时，每种元素都带来了不同的益处。钛（Ti）提高了强度和耐磨性，钼（Mo）有助于提高硬度，钒（V）促进了淬透性，钨（W）提高了耐磨性，铬（Cr）提供了耐磨性和硬度。展望所开发复合材料的潜在应用，该研究表明其适用于航空航天领域，特别是用于铸造轻质但高强度的零件，如飞机部件、发动机部件和结构部件，强调了所研究的TiMoVWCr HEA粉末改性A356复合材料的重要性。
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