Abstract:This study investigated the microstructure and high temperature oxidation properties of Fe-25Cr-20Ni-1.5Nb, HK30 alloy manufactured by metal injection molding (MIM) process. The powder used in MIM had a bi-modal size distribution of 0.11 and 9.19 μm and had a spherical shape. The initial powder consisted of γ-Fe and Cr 23 C 6 phases. Microstructural observation of the manufactured (MIMed) HK30 alloy confirmed Cr 23 C 6 along the grain boundary of the γ-Fe matrix, and NbC was distributed evenly on the grain bou… Show more
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