Вплив швидкості охолодження на фазовий склад та властивості багатокомпонентних сплавів AlCoCrFeNiV з додаванням Mn та Si
Journal Title: Challenges and Issues of Modern Science - Year 2024, Vol 3, Issue 1
Abstract
Purpose. This paper is devoted to studying the mechanical properties and structure of multicomponent high-entropy alloys of the AlCoCrFeNiV system with the addition of Mn and Si in as-cast and splat-quenched state. Design / Method / Approach. The as-cast ingots of AlCoCrFeMnNiSiV multicomponent samples were prepared using a Tamman furnace under an argon atmosphere. The alloy films were fabricated using the well-known splat-quenching technique. The cooling rate, estimated based on the film thickness, was ~106 K/s. Findings. It has been established that the as-cast alloys have a multiphase structure, which includes solid solutions with a BCC lattice and ordered solid solutions of the B2 structural type, whereas the rapidly quenched alloys contain only disordered BCC solid solutions. It has been shown that the increase in the level of microstresses and dislocation density during rapid solidification contributes to the improvement of the mechanical properties of the studied alloys. The enhanced strength characteristics are due to the significant distortion of the crystal lattice caused by differences in the atomic radii of the elements. Theoretical Implications. This study advances the theoretical understanding of high-entropy alloys by explaining the relationship between cooling rates and the resulting phase structures and mechanical properties. Practical Implications. With an increase in cooling rate, the dislocation density, level of microstrains and microhardness of the AlCoCrFeMnNiSiV multicomponent alloys increase. Originality / Value. This study provides novel insights into the phase composition and mechanical properties of multicomponent alloys with varying cooling rates. The research highlights the distinct structural differences between as-cast and splat-quenched alloys. Research Limitations / Future Research. The current study is limited by the scope of cooling rates and alloy compositions investigated. Future research could explore a broader range of cooling rates and additional alloying elements. to further understand their effects on the phase composition and properties of high-entropy alloys. Paper Type. Applied Research.
Authors and Affiliations
Олександр Кушнерьов, Валерій Башев, Сергій Рябцев
Keywords
Related Articles
- EP ID EP753051
- DOI https://purl.org/cims/2403.010
- Views 17
- Downloads 3
Аналіз можливостей створення безпілотного літального апарату для радіаційного моніторингу
Purpose. This research focuses on analyzing the feasibility of developing an unmanned aerial vehicle (UAV) specifically designed for measuring radiation levels. Such a UAV would enhance safety and provide essential data...
Моделі лідерства в менеджменті крос-культурних команд
Purpose. This article examines leadership models and strategies for managing cross-cultural teams. It focuses on leaders' behavioural priorities, such as task orientation, relationships, and shared leadership, and how cu...
Аналіз електронної комерції як драйвера глобалізації: можливості для бізнесу та ризики
Purpose. This paper analyzes the role of e-commerce as a driver of globalization, focusing on its opportunities and risks. By examining the evolution of e-commerce and its impact on global trade, the study explores how b...
Аналіз ролі лідера у забезпеченні успіху проєкту: стиль, адаптивність та емоційний інтелект
Purpose. The purpose of this paper is to explore the critical role of leadership in ensuring the success of a project. It aims to analyze how various leadership styles, skills, and strategies contribute to effective proj...
Оцінка впливу збройної агресії Росії на стан атмосферного повітря в Україні
Purpose. The article is aimed at identifying the sources of the negative impact of Russia's armed aggression on the atmospheric air in Ukraine and the consequences of the influx of harmful substances from them on the hea...