Valve seat insert: air quenching and characterization of components obtained with AISI M3:2 high-speed steel
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2018
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CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 23.
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Resumo
The development of components ecologically correct is something more and more
necessary. The first developement of valve seat inserts (VSI) take in account the use
of cobalt and lead in its chemical composition. Such elements are avoided in the
current applications due to its high cost and toxicological effects, respectively. In the
present work was used VSI developed with a new chemical composition. The aim of
this work were to air quench and characterize such components. The studied VSI were
obtained with AISI M3:2 high-speed steel admixed with iron powder and another
additives such as manganese sulphide, graphite, zinc stearate and carbides. All the
air quenched VSI were double tempered, for one hour each, at seven equidistant
temperature from 100 °C until 700 °C. The air quenched components had its
mechanical and physical properties determined by means of its apparent density,
apparent hardness and crush radial strength. The chemical composition was
measured through the gases analyses and energy dispersive X-ray fluorescence
spectrometry techniques. Microstructural and phase characterizations were performed
with the support of optical microscopy, scanning electron microscopy and energy
dispersive spectroscopy. Regarding the VSI required properties, the best results were
obtained with the components air quenched and double tempered at 600 °C.
Como referenciar
GOMES, M.P.; SANTOS, I.P.; REIS, L.A.M.; COUTO, C.P.; BETINI, E.G.; MUCSI, C.S.; COLOSIO, M.A.; ROSSI, J.L. Valve seat insert: air quenching and characterization of components obtained with AISI M3:2 high-speed steel. In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 23., 04-08 de novembro, 2018, Foz do Iguaçu, PR. Resumo... p. 6228-6228. Disponível em: http://repositorio.ipen.br/handle/123456789/29600. Acesso em: 24 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.