In the current study, Twin Parallel Channel Angular Extrusion (TPCAE) as a developed SPD processing technique is used to improve hydrogen storage properties of AZ91 cast alloy. The conducted at different temperatures, ranging from 340 °C down 200 °C. absorption and desorption tests are kinetically three using Sievert-type apparatus. Remarkable improvement in kinetic achieved result TPCAE proces...

Abstract The heat generated during friction stir processing greatly affects defects formation in the processed zone of workpieces. In this paper, numerical modeling process is performed to determine influence tool rotational and traverse speeds hence their ratio on thermal distribution attained process. aim produce defect-free samples by selecting adequate speeds. mechanisms depending peak temp...

In this study, the effects of forming method (extrusion) and environmental factors (solution pH and temperature) on the corrosion performance of AZ91 magnesium alloys were investigated using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and salt spray techniques. The polarization test results of the specimens showed that simple sh...