Abstract The rapid bio-corrosion of magnesium-based alloys, the formation hydrogen gas and, consequently, premature loss biomechanical functions hinder their applications as biodegradable implant materials. corrosion becomes even accelerated, when fretting wear occurs at junctions, a result repeated disruptions magnesium (hydr)oxide layer formed on surfaces. To improve overall performance these...

Abstract The mechanical behavior, corrosion mechanisms, and cytocompatibility at the interface of magnesium wires reinforced poly-lactic acid polymer composites were studied by in vitro degradation study 180 days. Surface modification Mg plasma-electrolytic oxidation improved shear strength from 10.9 MPa to 26.3 which decreased 8 13.6 Mg/PLA PEO-Mg/PLA composites, respectively, after 42 days de...

The present work investigates the compressive property of Al matrix composite foams at different temperatures between room temperature and 200 ◦C. Elevated temperature results in a decreased compressive strength and energy absorption capacity of as-received Al foams. Therefore, to maintain the compressive property, the Al2O3 ceramic coating was deposited on the Al struts of the foams by the pla...

Open-celled aluminum foams with different pore sizes were fabricated. A plasma electrolytic oxidation (PEO) treatment was applied on the aluminum foams to create a layer of ceramic coating. The sound absorption coefficients of the foams were measured by an impedance tube and they were calculated by a transfer function method. The experimental results show that the sound absorption coefficient o...