Investigation of Microstructural Evolution of Gas-assisted Metal Injection Molded and Sintered Mg-0.5Ca Alloy
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Int Inst Science Sintering (I I S S)
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, Mg-0.5Ca alloy was produced in a newly designed unit during the metal injection molding process. 40 mu m(D9)(0) Mg powder and 500nm(D90) Ca powder were used in accordance with injection molding and powder sintering rules. In the injection phase, Polyethylene-glycol (PEG) and Poly-methyl-methacrylate (PWA) and stearic acid (SA) polymers act as binders 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), and Vickers microhardness (HV) examinations were performed. The samples produced were subjected to the sintering process at different temperatures and times. Conventional powder sinter stages point, neck, and joining structures were obtained at different temperatures and durations. As a result, it was determined that Mg-0.5Ca alloy reached a metallic form with the specified polymer structure only at 600 degrees C temperature and after 5 h sintering. Grain boundaries were formed in the sintered sample and the presence of the Mg2Ca phase was observed. The hardness of the metallic structure obtained was measured as 49.9 HV0.1 on average.
Açıklama
Anahtar Kelimeler
Magnesium, Calcium, Sintering, Injection Molding, Hardness
Kaynak
Science of Sintering
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
54
Sayı
1
