Adjusting the Sintering Cycle of a Hadfield Sintered Steel Produced by Metal Injection Molding

Schroeder, Renan; Filho, A.I. Ramos; Binder, Cristiano; Klein, Aloı́sio Nelmo

doi:10.1590/1516-1439.347114

Cited by 3 publications

(1 citation statement)

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“…If the water, hydrogen or oxygen content is too high, decarburization by reaction with the atmosphere may occur 26 . In such cases there is also the possibility of Mn oxidation 28 . In this study, the mechanical behavior was evaluated predominantly by hardness, as this property is significantly influenced by the densification obtained during sintering.…”

Section: -D) the Materials Researchmentioning

confidence: 99%

Effect of Processing Route on the Microstructure and Mechanical Properties of Hot Work Tool Steel

et al. 2017

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Powder metallurgy is a growing sector in industrial production, as it offers outstanding energy, cost and material savings in comparison with established processing routes such as casting. Hot work toll steels are usually produced by ingot metallurgy, but also by powder metallurgy, namely hot isostatic pressing and powder forging routes. In this paper we investigate the possibility of production of a hot work tool steel (AISI H13) by conventional (die compaction and pressureless sintering) and metal injection molding routes, aiming to reduce cost and production time. The sintering behavior was studied from 1250 °C until 1430 °C and the resulting parts were compared in terms of microstructure, hardness and tensile strength. The results showed that both shaping routes together with pressureless sintering are suitable to produce this alloy. By combining the best shaping approach and a tailored sintering cycle, it was possible to produce samples with 400 HV10 as well as tensile strength of 1 GPa, which are comparable to the ones obtained by powder forging.

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Section: -D) the Materials Researchmentioning

confidence: 99%