Development of Light-Weight High Entropy Alloys for Aerospace Applications: Perspective of Artificial Intelligence

The primary driver of growing demand for innovation in materials particularly for aerospace applications is energy efficient and lightweight without sacrificing mechanical properties. One of such group of materials developed and researched across the globe is the high entropy alloys (HEAs). These alloys comprise a minimum of five elements to a maximum of thirteen elements in it. As the name indicates, the level of entropy has to decide the stability of the alloy system followed by Gibbs free energy. To increase the entropy level, more alloying elements can be added this is the simple concept of High Entropy alloy. This state-of-the-art article focuses on HEAs based on lightweight materials, their development, and mechanical property evaluation, and the application of Artificial Intelligence (AI) techniques in predicting the properties and performance based on various machine learning techniques based on sustainable development goals. The role of artificial intelligence in optimizing the composition, the number of elements for designing the HEAs, the predicted properties, and the performance of the same are compiled and presented in this review article.