Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature
This work focused on fracture toughness studies of WC–10 wt% Co hardmetal fabricated through the high pressure/high-temperature technique. A powder mixture of WC–10 wt% Co was sintered at 1500–1900°C under a pressure of 7.7 GPa for 2 and 3 min. Vickers hardness test at two different loads of 15 and...
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ri-123456789-332432021-08-25T21:46:29Z Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature Mashhadikarimi, Meysam Gomes, Uílame Umbelino Oliveira, M. P. Guimarães, R. D. S. Mello Júnior, M. M. B. Filgueira, Marcello Hardmetals High pressure High temperature Fracture toughness Grain growth WC This work focused on fracture toughness studies of WC–10 wt% Co hardmetal fabricated through the high pressure/high-temperature technique. A powder mixture of WC–10 wt% Co was sintered at 1500–1900°C under a pressure of 7.7 GPa for 2 and 3 min. Vickers hardness test at two different loads of 15 and 30 kgf was done and fracture toughness of the sintered bodies was measured using the indentation method to obtain the effect of sintering parameters. Structural analyses were also performed via X-ray diffraction to investigate structure-related properties. Full density was achieved for high sintering temperature along with abnormal grain growth that reduced hardness. High hardness was observed ranging from 1200 to 1670 HV and fracture toughness increased with increasing sintering temperature up to the highest value of 17.85 MPa/m 2021-08-25T21:46:29Z 2021-08-25T21:46:29Z 2016-11-29 article KARIMI, M. M.; GOMES, U. U.; OLIVEIRA, M. P.; GUIMARÃES, R. D. S.; MELLO, M. M. B.; FILGUEIRA, M. Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature. High Pressure Research, [S.L.], v. 37, n. 1, p. 59-69, 29 nov. 2016. Disponível em: https://www.tandfonline.com/doi/abs/10.1080/08957959.2016.1261403?journalCode=ghpr20. Acesso em: 23 mar. 2021. http://dx.doi.org/10.1080/08957959.2016.1261403. 0895-7959 1477-2299 https://repositorio.ufrn.br/handle/123456789/33243 10.1080/08957959.2016.1261403 en Attribution-NonCommercial 3.0 Brazil http://creativecommons.org/licenses/by-nc/3.0/br/ application/pdf Taylor and Francis Group |
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Hardmetals High pressure High temperature Fracture toughness Grain growth WC |
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Hardmetals High pressure High temperature Fracture toughness Grain growth WC Mashhadikarimi, Meysam Gomes, Uílame Umbelino Oliveira, M. P. Guimarães, R. D. S. Mello Júnior, M. M. B. Filgueira, Marcello Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature |
| description |
This work focused on fracture toughness studies of WC–10 wt% Co hardmetal fabricated through the high pressure/high-temperature technique. A powder mixture of WC–10 wt% Co was sintered at 1500–1900°C under a pressure of 7.7 GPa for 2 and 3 min. Vickers hardness test at two different loads of 15 and 30 kgf was done and fracture toughness of the sintered bodies was measured using the indentation method to obtain the effect of sintering parameters. Structural analyses were also performed via X-ray diffraction to investigate structure-related properties. Full density was achieved for high sintering temperature along with abnormal
grain growth that reduced hardness. High hardness was observed ranging from 1200 to 1670 HV and fracture toughness increased with increasing sintering temperature up to the highest value of 17.85 MPa/m |
| format |
article |
| author |
Mashhadikarimi, Meysam Gomes, Uílame Umbelino Oliveira, M. P. Guimarães, R. D. S. Mello Júnior, M. M. B. Filgueira, Marcello |
| author_facet |
Mashhadikarimi, Meysam Gomes, Uílame Umbelino Oliveira, M. P. Guimarães, R. D. S. Mello Júnior, M. M. B. Filgueira, Marcello |
| author_sort |
Mashhadikarimi, Meysam |
| title |
Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature |
| title_short |
Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature |
| title_full |
Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature |
| title_fullStr |
Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature |
| title_full_unstemmed |
Fracture toughness evaluation of WC–10 wt% Co hardmetal sintered under high pressure and high temperature |
| title_sort |
fracture toughness evaluation of wc–10 wt% co hardmetal sintered under high pressure and high temperature |
| publisher |
Taylor and Francis Group |
| publishDate |
2021 |
| url |
https://repositorio.ufrn.br/handle/123456789/33243 |
| work_keys_str_mv |
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| _version_ |
1773965322128195584 |