Investigation of Texture and Process Optimization for 3xxx Alloys with Different Magnesium Ratios

The formability features of 3xxx alloys differ due to mechanical and microstructural alterations. Among these alterations, texture development and intermetallic precipitates are some of the most critical ones which affect formability such as bending behavior of the final product. This paper deals with the effect of microstructural and mechanical changes on the bending of 3xxx alloys. Based on this, 3004 and 3005 alloys were produced by the twin-roll casting method that is an alternative to the traditional casting method. To achieve the required strength along with good bendability, alternative thermo-mechanical processes were carried out on laboratory scale by using a laboratory-type furnace and rolling mill. Tensile tests and bending tests were examined in the perspective of investigate materials' mechanical properties and planar anisotropy values. Microstructural characterizations were accomplished by using optic microscope, stereo microscope and scanning electron microscope in compliance with examining the intermetallic structure, grain distribution and texture development. In addition to this, SEM?EDS&EBSD analyses were carried out to analyze the texture components alteration and intermetallic characterization. It was observed that texture components and intermetallic precipitates have a significant influence on bending. Recrystallization texture components present improved bending behavior and Mg₂Si intermetallic precipitates reduce cube texture component ratio.