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Título: | Effect of high-energy milling and sintering temperature on the structure of a hardmetal. |
Autor(es): | Batista, Adriano Corrêa Oliveira, Hellen Cristine Prata de Filgueira, Marcello Pinto, Maria Aparecida Faria, Geraldo Lúcio de Perpétuo, Genivaldo Julio |
Palavras-chave: | Conventional sintering Residual stress Rietveld method Phase quantification |
Data do documento: | 2018 |
Referência: | BATISTA, A. C. et al. Effect of high-energy milling and sintering temperature on the structure of a hardmetal. Indian Journal of Applied Research, v. 8, p. 1-7, 2018. Disponível em: <https://www.worldwidejournals.com/indian-journal-of-applied-research-(IJAR)/articles.php?val=MTU5MTY=&b1=109&k=28>. Acesso em: 13 fev. 2019. |
Resumo: | This paper evaluated the effect of high-energy milling and sintering temperature on the structural characteristics of WC- 10%Co. These samples were sintered at temperatures of 1350°C, 1400°C and 1450°C. The cooling rate of 100°C/h was used within the temperature range of 1000°C and 800°C to relieve residual stress from the sintering process. The samples were submitted to X-ray diffraction analysis with Rietveld refinement in order to characterize, at the atomic level, the effects of each processing stage on the material structure. The high-energy milling process may have accelerated the dissolution process of a large part of the WC particles during sintering, contributing to the formation of n phases. The characterization techniques were effective to evaluate the effects of high-energy milling, sintering temperature and residual stress on the structural characteristics of the composites investigated and the formation of amounts above 34% by weight of the Co W C and Co W C phases. |
URI: | http://www.repositorio.ufop.br/handle/123456789/10847 |
ISSN: | 2249555X |
Licença: | This work is licensed under a Creative Commons Attribution 4.0 International License. Fonte: Indian Journal of Applied Research <https://www.worldwidejournals.com/indian-journal-of-applied-research-(IJAR)/articles.php?val=MTU5MTY=&b1=109&k=28> acesso em: 18 fev. 2019. |
Aparece nas coleções: | DEMET - Artigos publicados em periódicos |
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