Comparative impact behavior of high C steel after conventional quenching and tempering and austempering
Tipo
Artigo de evento
Data de publicação
2015
Periódico
ASM International - 28th Heat Treating Society Conference, HEAT TREATING 2015
Citações (Scopus)
0
Autores
Vatavuk J.
Totten G.E.
Nucci J.E.
Albano L.L.M.
De Canale L.C.F.
Totten G.E.
Nucci J.E.
Albano L.L.M.
De Canale L.C.F.
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Resumo
© 2015 ASM International®.Usually bainitic microstructures exhibit good toughness and austempering is typically the preferred heat treatment when toughness is the primary requirement of the component. Several reports have shown such characteristics when compared to tempered martensite. High carbon steel may exhibit brittle characteristics but it is a good steel with respect to mechanical properties and wear resistance. The objective of this study was to compare the impact properties of AISI 01, a high carbon tool steel as VND in Brazil. This was done by comparing Charpy impact strength under different heat treatment cycles. Tempered martensite and bainite was obtained at 350°C after holding at temperature for 20, 40, and 60 minutes. Since hardness influences impact behavior, comparative studies were performed at the same surface hardness level. Results show a low absorbed energy for the austempered samples which for this temperature is independent of the holding time.
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Assuntos Scopus
Bainitic microstructures , Comparative studies , Conventional quenching , Heat treatment cycle , High carbon steels , High carbon tool steel , Impact property , Tempered martensite