Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió acceptadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/194350
Microscopic characterization of different shrinkage defects in ductile irons and their relation with composition and inoculation processs.
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
Shrinkage becomes one of the most important defects that negatively affects the production of ductile cast iron parts. Regular inspections made on the affected parts show that different morphologies of shrinkage can be obtained according to the melt composition, to the layout and to a number of other processing variables that have been reported in the literature. However, minimization of these defects demands a more detailed understanding of their internal features and the relationship with the processing variables causing the greatest effect. In the present study, carbon equivalent content, inoculation and thermal characterization of melts have been studied as variables for producing eight test parts which have been designed for promoting the formation of shrinkage. The different defects obtained in each case have been analyzed by means of metallographic techniques and FE-SEM and their characteristics and size correlated with the selected variables. It has been found that carbon equivalent shows the strongest effect on shrinkage incidence. A discussion about the features found in the internal surfaces of the different closed defects is done, and possible explanations for each case are also described.
Matèries (anglès)
Citació
Citació
REGORDOSA ROMAGOSA, Anna, LLORCA I ISERN, Núria. Microscopic characterization of different shrinkage defects in ductile irons and their relation with composition and inoculation processs.. _International Journal of Metalcasting_. 2017. Vol. 11, núm. 4, pàgs. 778-789. [consulta: 25 de gener de 2026]. ISSN: 1939-5981. [Disponible a: https://hdl.handle.net/2445/194350]