Synthesis and Microstructure Characterization of Fe-Cr-Al Alloys Developed by Powder Metallurgy Technique with Plasma Sintering Method

Abstract Synthesis of Fe-Cr-Al alloy by powder metallurgy method was developed to produce a bioimplant material with low modulus elasticity. Microstructure characterization and phase identification were carried out support the development bone implant research. The alloys synthesized elemental composition 16 Cr (wt%) that added Al in variations 3, 6, 10 (wt%). synthesis an exceptional combination mixing mechanical milling, cold compacting consolidating special using APS (Arc Plasma Sintering) apparatus. analyzed SEM-EDS XRD tests. microstructure showed relatively homogeneous fine grain small porosity around 80 %. Refinement peak pattern revealed formation Fe-Cr main followed Fe-Al as solid solution. hardness test high level maximum for Fe-16Cr-6Al 160 VHN (Vickers Hardness Number). quantity influenced alloy.