Is Prima Nanda, Zahran Ali, Nur Farah Bazilah Wakhi Anuar, Mohd Hasbullah Idris, Andril Arafat
The potential of binary Mg-Ca alloy as biodegradable material is considerable interest in implant application among researchers. This research was conducted to investigate the effect of different forging temperature and forging speed on the hardness, microstructure and corrosion rate of Mg-0.7%Ca. The experiment was established by preparing the alloy sample with 0.7%wt calcium content. The forging process was carried out under four different temperature variations of 140°C, 180°C, 220°C, and 260°C ( 10°C) with two different speed;25 and 45 strokes per minute (spm). The samples microstructure was examined by optical microscope and scanning electron microscope (SEM) equipped with energy dispersive X-ray (EDX). The mechanical properties of the forged samples were measured in its hardness and plastic deformation ability along with samples cold-working percentage. The corrosion rate was determined by performing the electrochemical test in simulated body fluid. This research found that increases of forging temperature and forging speed provide a higher rate of recrystallization and Mg2Ca compound precipitation results in greater hardness, increase deformation and reduce the cold-working percentage. However, the investigated factors still led to a high corrosion rate compared to a previous study and consequently, reduce the feasibility of the alloy in implant application for biodegradable material. © Published under licence by IOP Publishing Ltd.
Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas, Padang, Sumatera Barat, 25163, Indonesia; Department of Materials, Manufacturing and Industry Engineering, School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, 81310, Malaysia; Fakulti Teknologi Kejuruteraan Mekanikal Dan Pembuatan, Universiti Teknikal Malaysia, Durian Tunggal, Melaka, 76100, Malaysia; Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Padang, Sumatera Barat, 25131, Indonesia
