Deformation and Recrystallization Behaviors in Magnesium Alloys
نویسندگان
چکیده
منابع مشابه
Review on ultrafined/nanostructured magnesium alloys produced through severe plastic deformation: microstructures
A review on the microstructural evolution in magnesium alloys during severe plastic deformation waspresented. The challenges deserved to achieve ultrafine/ nanostructured magnesium were discussed.The characteristics of the processed materials are influenced by three main factors, including i)difficult processing at low temperatures, ii) high temperature processing and the occurrence ofdynamic r...
متن کاملDiscontinuous Dynamic Recrystallization during Accumulative Back Extrusion of a Magnesium Alloy
The study of nucleation mechanism of new grains during severe plastic deformation of magnesium alloys is of great importance to control the characteristics of final microstructures. To investigate the role of discontinuous recrystallization, a wrought AZ31 magnesium alloy was deformed by accumulative back extrusion process at 330 °C. The obtained microstructures were studied using optical and...
متن کاملElectron Channeling Contrast Observations in Deformed Magnesium Alloys
In industrial metal-forming processes, quantitative and physical models are required to control and optimize the microstructure of the finished products. A detailed understanding of the behavior of polycrystalline materials during deformation processes is essential to develop such models. A number of instruments and analytical tools are available for deformation studies within the microscopy an...
متن کاملAn Investigation on the Softening Mechanism of 5754 Aluminum Alloy during Multistage Hot Deformation
Isothermal interrupted hot compression tests of 5754 aluminum were conducted on a Gleeble-3500 thermo-mechanical simulator at temperatures of 350 °C and 450 °C, and strain rates of 0.1 s−1 and 1 s−1. To investigate the metadynamic recrystallization behavior, a range of inter-pass delay times (5–60 s) was employed. These tests simulated flat rolling to investigate how softening behaviors respond...
متن کاملImproved Formability of Mg-AZ80 Alloy under a High Strain Rate in Expanding-Ring Experiments
Magnesium alloys offer a favored alternative to steels and aluminum alloys due to their low density and relatively high specific strength. Their application potentials are, however, impeded by poor formability at room temperature. In the current work, improved formability for the commercial magnesium AZ80 alloy was attained through the application of the high-rate electro-magnetic forming (EMF)...
متن کامل