Investigations on Microstructure and Mechanical Properties of AZ91 Alloy Processed by Single Pass Rolling with Varied Rolling Reductions

In this study, single pass rolling (SPR) with varied reductions was conducted on pre-homogenized AZ91 alloys (H alloys) and ECAP-processed (HE alloys). The effects of reduction the microstructures mechanical properties HR (pre-homogenized rolled) HER (ECAP-processed were investigated. results showed that possessed much finer superior than alloys, which significantly influenced by reduction. became bimodal, strength elongation markedly improved increase in When reached 70%, acquired a typical bimodal structure, contributing to their excellent comprehensive properties.