Enhancement of magnesium-composite bond-interface by a simple combined abrasion and coating method

Obtaining a strong bond when adhering magnesium alloys to other materials,especially to fiber-reinforced polymer composites,is challenging.Regardless of the strength of the adhesive used,it is the surface preparation that also significantly affects the overall bond strength and long-term performance of the mated surfaces.While optimal and established surface preparations are available for aluminum,steel alloys and polymer composites,the current method proposed for magnesium alloys is extremely onerous,time-consuming,and very expensive.The aim of the research disclosed in this paper has been to develop a relatively simple,effective and economical procedure for enhancing the bond strength between magnesium alloy to fiber-reinforced polymer composites,which had been proven to be a challenging issue.The proposed method facilitates a superior interface-bond using a relatively low-cost epoxy resin.Enhanced Mode I fracture toughness and delamination resistance are obtained.Both static and impact tests are used to assess the effectiveness of the proposed procedure.©2019 Published by Elsevier B.V.on behalf of Chongqing University.