STUDY TO MICROSTRUCTURE AND MECHANICAL PROPERTIES OF Mg-Zn-Fe-Cu-Co AS HIGH ENTROPY ALLOYS FOR URETERAL IMPLANT APPLICATION

Magnesium and its alloys are promising candidates for degradable materials with good biocompatibility. Alloys based on Mg-Zn-Fe-Cu-Co compositions were designed using the equiatomic method of high entropy alloy. This paper discusses microstructure mechanical properties these new alloys. Pure (60 µm), Zinc (45 Fe (10 Cu (63 Co (1 µm) powder mixed milled a shaker mill at 700 rpm 1800s. The resulting powders compacted sintered 300 MPa 180s 600 120s. Sintering was performed 700oC 2 hours in tube vacuum furnace 5 °C/min heating rate under purity argon atmosphere. Microstructural analyses tests American standard testing measurement. basically multiphase crystalline. 20Mg-20Zn-20Fe-20Cu-20Co alloy consisted HCP phase cubic phase. physical affected by magnesium content matrix presence pores indicated uncomplete compaction sintering process. have medium hardness between 286.06 HV - 80.98 HV, while densities relatively moderate range 3.057 g.cm-3 to 1.71 g.cm-3. Solid solution intermetallic precipitation strengthening believed primary mechanics It is concluded that processing Mg Alloy chemical composition had optimal meet minimum requirements as ureteral implant applications.