Effect of induction hardening of Fe-C-Ni-Cu-Mo-B metal matrix composites by powder metallurgy for gear production
Journal Title: Journal of Achievements in Materials and Manufacturing Engineering - Year 2016, Vol 79, Issue 2
Abstract
Purpose: In this study, mechanical behavior of iron base (Fe-0.8 C-2.0 Cu-1.5 Ni-X Mo-YB (%wt.), x=0.6, 1.2 and 1.8; Y=0.2, 0.6 and 1.0) metal matrix composite (MMC) by powdermetallurgy was investigated for gear production. Effect of Mo and B elements on surfacehardness, density and microstructure of the composite samples.Design/methodology/approach: MMC has produced by warm compaction methodfollowed by free sintering in controlled Ar gas atmosphere. Green composite has producedunder 650 MPa pressure at 160ºC temperature. The green products have been sinteredat temperature of 1150ºC and 60 min sintering time. Hardness test have been conductedbefore and after induction hardening. The microstructure of the samples have beenexamined before and after induction hardening under optical microscopy.Findings: The results have showed that the highest surface hardness has been obtainedX=1.8 and Y=1.0 composition. Addition of Mo and B elements does not affect on the densityof the sample.Research limitations/implications: The ability of induction hardening to compositematerial has been investigated.Originality/value: The studies were carried out in experimental composition with warmcompacting method.
Authors and Affiliations
T. Gün, M. Şimşir, F. Özaydin
Keywords
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