Analysis of temperature effect on anisotropy of AZ31 sheet

AZ31 is a challenging alloy for aerospace, automotive, and biomedical industries. This study delves deep into the intricate relationship between build orientations, temperature, and the resulting mechanical behavior of AZ31 alloy. Utilizing tensile tests on specimens with distinct build orientations, the research evaluates the alloy's response to varying temperatures of 100, 200, and 300°C. The primary objective is to elucidate the nuanced effects of anisotropy and temperature gradients on the alloy's tensile strength, elongation, and overall mechanical performance. Furthermore, disc compression tests, a novel approach in this research, involve stacking multiple discs and subjecting them to compressive forces. This method, inspired by the findings of, aims to provide a comprehensive understanding of anisotropy, extract the Lankford values, and determine precise yield strengths. The study also ventures into the realm of computational simulations using the renowned MATLAB software. Several criteria, including the Hill48, the Barlat89, the Yld 2000, the Yld2004-2p, and the SHYqp2023 yield criteria are employed to simulate and predict the material's behavior under diverse conditions, a methodology that aligns with recent computational studies on similar materials. This research not only contributes to the existing body of knowledge but also paves the way for the development of advanced magnesium-based materials with tailored properties for specific applications. Results indicate that the mapped out biaxial anisotropy and the associated Lankford values and variations regarding temperatures and orientations. Older models, such as the Hill-48 and the Barlat-89 does not accurately predict anisotropic nature of AZ31. The Yld-2004 and the Bezier-SHYqp2023 models seem promising in predicting anisotropic features of AZ31 material, and materials of having the HCP crystal structures in general.