Seoul National University · Materials Science
Professor Lifei Wang's research lab specializes in the fundamental and applied research of magnesium alloys, focusing on their mechanical behavior, microstructure evolution, and surface engineering for advanced engineering and biomedical applications. The lab investigates texture control, deformation mechanisms, and processing technologies—such as width-limited rolling and severe plastic deformation—to enhance the formability and ductility of magnesium alloys at low temperatures. A key research direction involves improving the corrosion resistance of magnesium alloys through micro-alloying, purification, and surface modification techniques for use in biodegradable implants. The lab also explores the temperature-dependent slip and twinning behaviors in magnesium single crystals using viscoplastic modeling and advanced characterization methods.
Figures are computed from collected data and may differ slightly.
Current research seems to underscore the impact of parental expectations on college students’ psychological distress. This study examined whether parental expectations or living up to parental expectations served as better predictors on Taiwanese college students’ psychological distress. Study 1 developed and validated a scale for measuring parental expectations and living up to parental expectations. Results supported the factorial validity and reliability of the scale. The results of Study 2 s
Magnesium (Mg) single crystal specimens with three different orientations were prepared and tested from room temperature to 733 K in order to systematically evaluate effects of temperature on the critical resolved shear stress (CRSS) of slips and twinning in Mg single crystals. The duplex non-basal <a> slip took place in the temperature range from 613 to 733 K when the single crystal samples were stretched along the <01¯10> direction. In contrast, the single basal <a> slip and prismatic <a> slip
To suppress the edge crack of the magnesium alloy sheet during the ordinary rolling process, a new rolling process named width-limited rolling was proposed in this paper. Width-limited rolling is a rolling method in which the width of the alloy sheet is limited by modifying the shape of the rollers, allowing a compressive stress field to form at the edge portion of the alloy sheet during rolling, resulting in the reduction of edge cracks. At present work, magnesium alloy sheets were separately s
Owing to the hexagonal close-packed (HCP) crystal structure of magnesium alloys, they are characterized by poor plasticity at low temperatures (below recrystallization temperature), which limits their application. Texture control has been proven to be an effective way to enhance the ductility, formability, processability, and so on. Various technologies, which can be classified as alloying elements, induced shear deformation, pre-twins, and recrystallization, have been developed to modify the ba
Magnesium (Mg) alloys have received increasing interest in the past two decades as biomaterials due to their excellent biological compatibility. However, the corrosion resistance of Mg alloys is relativity low which limits their usage in degradable implant applications, and controlling the corrosion resistance is the key to solving this problem. This review discusses the relative corrosion mechanisms, including pitting, filiform, high temperature, stress corrosion, etc., of Mg alloys. Various ap
Open papers in the app to read, cite, and organize with AI.
