Fracture Properties of PCBN as a Function of Loading Rate

Declan Carolan; M. Petrović; Alojz Ivanković; Neal Murphy

doi:10.4028/www.scientific.net/KEM.417-418.669

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 417-418Fracture Properties of PCBN as a Function of...

Fracture Properties of PCBN as a Function of Loading Rate

Abstract:

Polycrystalline Cubic Boron Nitride (PCBN) is a superhard material which is used in machining of hardened steels and other abrasive and aerospace grade alloys. In these applications the tools are subjected to high operating temperatures, abrasive and impact loading. Impact loading can lead to the sudden fracture and hence failure of the tool. In this work the static and dynamic fracture toughness of PCBN is determined via a combined experimental-numerical approach. The results show that the fracture toughness of PCBN varies with loading rate.

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Periodical:

Key Engineering Materials (Volumes 417-418)

Pages:

669-672

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.417-418.669

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Online since:

October 2009

Authors:

Declan Carolan, M. Petrović, Alojz Ivanković, Neal Murphy

Keywords:

Fracture, High Rate, Mechanical Property, PCBN

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References

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