• Ahlatci, Hayrettin
• Turen, Yunus
• Sun, Yavuz
• Cicek, Bunyamin

Abstract

<jats:p>In this study, Mg-0.5Ca alloy was produced in a newly designed unit duringthe metal injection molding process. 40?mD90 Mg powder and 500nmD90 Capowder were used in accordance with injection molding and powder sinteringrules. In the injection phase, Polyethylene-glycol (PEG) andPoly-methyl-methacrylate (PMMA) and stearic acid (SA) polymers act asbinders and lubricants. In the experimental phase, X-ray Diffractometer(XRD), Thermal Gravimetric Analyze (TGA), Scanning Electron Microscope (SEM)equipped with Energy Dispersive Spectroscopy Mapping (EDS and MAP), andVickers microhardness (HV) examinations were performed. The samples producedwere subjected to the sintering process at different temperatures and times.Conventional powder sinter stages point, neck, and joining structures wereobtained at different temperatures and durations. As a result, it wasdetermined that Mg-0.5Ca alloy reached a metallic form with the specifiedpolymer structure only at 600oC temperature and after 5 h sintering. Grainboundaries were formed in the sintered sample and the presence of the Mg2Caphase was observed. The hardness of the metallic structure obtained wasmeasured as 49.9 HV0.1 on average.</jats:p>

Topics

• polymer
• phase
• scanning electron microscopy
• x-ray diffraction
• hardness
• thermogravimetry
• Energy-dispersive X-ray spectroscopy
• injection molding
• joining
• sintering