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Título: | Infusion of hydrogen into nanostructured bainitic steel. |
Autor(es): | Cota, André Barros Ooi, S. W. Solano Alvarez, Wilberth Bhadeshia, H. K. D. H. |
Palavras-chave: | Thermal desorption analysis Trapping energy |
Data do documento: | 2017 |
Referência: | COTA, A. B. Infusion of hydrogen into nanostructured bainitic steel. Materials Characterization, v. 134, p. 96-102, dez. 2017. Disponível em: <https://www.sciencedirect.com/science/article/pii/S1044580317307696>. Acesso em: 16 jun. 2018. |
Resumo: | The trapping of hydrogen in nanostructured bainitic steel has been investigated using thermal desorption analysis, in order to determine the potency of the ferrite-retained austenite (α/γ) interfaces and retained austenite as trapping sites. Thermal desorption data showed that the volume of retained austenite is more effective in trapping hydrogen than the interfaces. There is a close correlation between the quantity of hydrogen and the retained austenite content rather than the density of interfaces. A local equilibrium model was able to reproduce the hydrogen desorption behaviour of saturated and unsaturated samples considering both retained austenite and α/γ interfaces as the trapping sites. A trap binding energy ranging from 47 to 52 kJ/mol was estimated for retained austenite, suggesting that the observed trapping capacity originates from the austenite lattice sites. |
URI: | http://www.repositorio.ufop.br/handle/123456789/10451 |
Link para o artigo: | https://www.sciencedirect.com/science/article/pii/S1044580317307696#! |
ISSN: | 10445803 |
Aparece nas coleções: | DEFIS - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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ARTIGO_InfusionHydrogenNanostructured.pdf Restricted Access | 1,07 MB | Adobe PDF | Visualizar/Abrir |
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