Publication
The effect of Mo2C additions on the oxidation resistance of (Ti,W)CN cermets as base material for the production of cutting tools
| dc.contributor.author | Hadi, Morteza | |
| dc.contributor.author | Rafiaei, Seyed Mahdi | |
| dc.contributor.author | Fernandes, Filipe | |
| dc.date.accessioned | 2024-01-19T11:54:12Z | |
| dc.date.available | 2024-01-19T11:54:12Z | |
| dc.date.issued | 2023-04-01 | |
| dc.description.abstract | The effect of Mo2C secondary carbide on the oxidation resistance of (Ti0.93W0.07)CN0.3-20%Ni cermet was investigated using DSC-TG, isothermal oxidation, XRD, and SEM/EDS characterisations. Adding Mo2C secondary carbides to (Ti, W)CN cermets is one of the methods used for improving their mechanical properties. However, Mo2C secondary carbides bring a detrimental effect to oxidation resistance. The isothermal oxidation results of the samples at 750 ◦C possessing 0% and 2% MO2C follow the parabolic law, while in the samples containing 5% and 8% Mo2C, the rate of oxidation and the spallation of the oxide scale increased significantly. The thickness of the oxide layer in the cermet containing 5% of Mo2C increased three times, whereas the mass per unit area of the detached oxides in the 8% Mo2C specimen dramatically increased up to 100 times. The investigations revealed that the increase in the amount of W and Mo on the cermet material, as well as the formation of a multi-zone oxide layer, are the main reasons for oxide phase propagation. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.1016/j.ceramint.2023.03.288 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.22/24567 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier Ltd and Techna Group S.r.l. | pt_PT |
| dc.title | The effect of Mo2C additions on the oxidation resistance of (Ti,W)CN cermets as base material for the production of cutting tools | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 21545 | pt_PT |
| oaire.citation.issue | 13 | pt_PT |
| oaire.citation.startPage | 21538 | pt_PT |
| oaire.citation.title | Ceramics International | pt_PT |
| oaire.citation.volume | 49 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |