Abstract
Ensuring operational reliability and durability of products remains a pressing challenge in modern transportation manufacturing. The primary trend in the development of transportation technologies is increasing the performance requirements of materials. This trend focuses on reducing material consumption and product weight. This study focuses on Al-Mg-Sc aluminum alloys, a class of materials widely and successfully applied in engineering. The high specific strength of aluminum alloys enhances load-carrying capacity and reduces operational costs of transportation vehicles. Moreover, the high corrosion resistance of these materials extends service life and broadens the range of transportable goods, including highly aggressive liquids and gases. Al-Mg-Sc alloys exhibit high strength, excellent corrosion resistance, and good weldability. In modern metallurgical production, a significant proportion of semi-finished products and components made from these alloys are produced through metal forming processes. This paper examines rolling as the most productive metal forming method. Metal forming processes are employed in the manufacture of critical parts due to their ability to achieve superior mechanical properties. However, ensuring high mechanical and operational properties depends on the uniformity and extent of the material's structural refinement. This, in turn, is influenced by rolling process parameters such as degree and rate of deformation, diagrams of principal stresses and strains, processing temperature range, cooling rate, and more. Al-Mg-Sc alloys with a magnesium content of 5-6% have relatively low plasticity, complicating plastic deformation. It is generally believed that creating the most favorable deformation conditions is crucial for successful hot plastic deformation. Experimental research presented in this study indicates that, in addition to favorable deformation conditions, the microstructure of the initial billet significantly affects the quality of the final product. This work analyzes the microstructure of aluminum alloy 01570 samples. The analysis reveals specific features in the initial billet's microstructure. Comparing surface defects in strips after hot rolling with metallographic analysis results from samples taken before and after rolling suggests a clear relationship between the initial microstructure of the aluminum alloy and the formation of these defects.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call