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Strength and reliability of WC-Co cemented carbides: understanding microstructural effects on the basis of R-curve behavior and fractography

Author
Tarrago, J.; Coureaux, D.; Torres, Y.; Jimenez-Pique, E.; Schneider, L.; Fair, J.; Llanes, L.
Type of activity
Journal article
Journal
International journal of refractory metals and hard materials
Date of publication
2018-02
Volume
71
First page
221
Last page
221
DOI
https://doi.org/10.1016/j.ijrmhm.2017.11.031 Open in new window
Repository
http://hdl.handle.net/2117/112707 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0263436817307631?via%3Dihub Open in new window
Abstract
Strength and reliability of WC-Co cemented carbides (hardmetals) are dependent on effective fracture toughness as well as on nature, size and distribution of processing flaws. Regarding toughness, they exhibit a crack growth resistance (R-curve) behavior, derived from the development of a multiligament bridging zone at the crack wake. Accordingly, successful implementation of fracture mechanics requires consideration of tangency criterion, between applied stress intensity factor and R-curve, in ...
Citation
Tarrago, J., Coureaux, D., Torres, Y., Jimenez-Pique, E., Schneider, L., Fair, J., Llanes, L. Strength and reliability of WC-Co cemented carbides: understanding microstructural effects on the basis of R-curve behavior and fractography. "International journal of refractory metals and hard materials", Febrer 2018, vol. 71, p. 221.
Keywords
Fractography, R-curve behavior, Reliability, Strength, WC-Co cemented carbides
Group of research
CIEFMA - Structural Integrity, Micromechanics and Materials Reliability Centre
CRnE - Barcelona Research Center in Multiscale Science and Engineering

Participants

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