Analysis of improvements in technologicalproperties of WC-Co tool materials fabricated by sparkplasmasintering

• Autorzy: Siwak P. , Peta K. , Garbiec D.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The technological properties of WC-Co tool materials fabricated by spark plasma sintering has been investigated. Design/methodology/approach: The technological properties has been investigated using instrumented indentation and a Vickers tip indenter with an applied load of 300 mN. SEM and LM methods were used to characterize the microstructure. Findings: The best results of nanohardness (2144 HV0.031), elastic modulus (673 GPa), susceptibility to brittle cracking (0.60 μm/N) and work cracking (0.09 μJ) were obtained by compacts spark plasma sintered for a holding time of 3 min and at a heating rate of 300°C/min from a WC-6Co premixed powder with a particle size of 100-200 nm. Practical implications: The nanohardness, elastic modulus, susceptibility to brittle cracking and work cracking have been studied. Originality/value: Investigations of the role of holding time and heating rate in the spark plasma sintering process of WC-6Co tool materials revealed that nanohardness, elastic modulus and susceptibility to brittle cracking increase with a decreasing holding time and heating rate in contrast to work cracking which decreased.

Słowa kluczowe

EN

spark plasma sintering; cemented carbide; tool material; technological properties

PL

spiekanie plazmowe iskrowe; węglik spiekany; materiał narzędziowy; właściwości technologiczne

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2016
• Tom: Vol. 75, nr 2
• Strony: 61--65
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Siwak P.

• Institute of Mechanical Technology, Mechanical Engineering and Management Faculty, Poznan University of Technology, ul. Piotrowo 3, 60-965 Poznań, Poland

autor

Peta K.

• Institute of Mechanical Technology, Mechanical Engineering and Management Faculty, Poznan University of Technology, ul. Piotrowo 3, 60-965 Poznań, Poland

autor

Garbiec D.

• Metal Forming Institute, ul. Jana Pawła II 14, 61-139 Poznań, Poland

Bibliografia

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