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Fatigue performance improvement of electrical discharge machined hardmetals by means of combined thermal annealing and surface modification routes

Author
Llanes, L.; Salan, N.; Casas, B.; Mestra, A.; Torres, Y.
Type of activity
Journal article
Journal
International journal of refractory metals and hard materials
Date of publication
2013-01
Volume
36
First page
60
Last page
65
DOI
https://doi.org/10.1016/j.ijrmhm.2011.12.008 Open in new window
Repository
http://hdl.handle.net/2117/19759 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0263436811002137 Open in new window
Abstract
Electrical discharge machining (EDM) provides an effective means of shaping hardmetals. However, it is also known that surface integrity of these materials may be affected by EDM, degrading their tribomechanical characteristics. This work focuses on assessing the use of two different surface modification routes: thermomechanical treatments (shot blasting, polishing and final high temperature annealing) and/or physical vapor deposition of hard coatings, for improving the fracture and fatigue stre...
Citation
Llanes, L. [et al.]. Fatigue performance improvement of electrical discharge machined hardmetals by means of combined thermal annealing and surface modification routes. "International journal of refractory metals and hard materials", Gener 2013, vol. 36, p. 60-65.
Keywords
Cemented carbides WC-Co, Electrical discharge machining, Fatigue strength, Residual stresses, Surface modification
Group of research
CIEFMA - Structural Integrity, Micromechanics and Materials Reliability Centre
CRnE - Barcelona Research Center in Multiscale Science and Engineering

Participants