Publications
High temperature mechanical properties of WC-Co hard metals
- Author(s)
- T. Teppernegg, T. Kluensner, C. Kremsner, C. Tritremmel, C. Czettl, S. Puchegger, S. Marsoner, R. Pippan, R. Ebner
- Abstract
Understanding of the load situation and consequently the lifetime of cutting tools made of WC-Co hard metal requires quantitative data for thermo-mechanical properties. For the elevated temperatures present in application, these data are currently rather rare. The present work does discuss elastic material properties up to 1100 °C and compressive yield strength up to 900 °C, both as a function of Co content. The fracture toughness was determined as a function of the WC grain size and Co content up to 800 °C. Young's modulus and yield strength decrease with increasing temperature. A significant rise in fracture toughness was observed at 800 °C with increasing Co content and decreasing WC grain size. A possible reason for this increase is an increase in the plastic zone size at elevated temperatures.
- Organisation(s)
- Faculty Center for Nano Structure Research
- External organisation(s)
- MCL Leoben, CERATIZIT Austria Gesellschaft m.b.H., Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- International Journal of Refractory Metals and Hard Materials
- Volume
- 56
- Pages
- 139-144
- No. of pages
- 6
- ISSN
- 0263-4368
- DOI
- https://doi.org/10.1016/j.ijrmhm.2016.01.002
- Publication date
- 04-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103018 Materials physics
- Keywords
- ASJC Scopus subject areas
- Mechanics of Materials, Ceramics and Composites, Mechanical Engineering, Metals and Alloys, Materials Chemistry
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/high-temperature-mechanical-properties-of-wcco-hard-metals(9a38768f-f32c-46d7-9710-7f31ac9fd1de).html