Chunky Graphite in Low and High Silicon Spheroidal Graphite Cast Irons–Occurrence, Control and Effect on Mechanical Properties
| Autor: | Jon Sertucha, Jacques Lacaze, Garikoitz Artola, Urko de la Torre |
|---|---|
| Přispěvatelé: | IK4 - Azterlan - Centro de Investigación Metalúrgica (SPAIN), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Azterlan - Centro de Investigación Metalúrgica, Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Antimony
Cast iron Materials science Silicon antimony Matériaux Rare earth 0211 other engineering and technologies chemistry.chemical_element Mechanical properties 02 engineering and technology engineering.material mechanical properties lcsh:Technology Article Standard Charge tin Spheroidal graphite General Materials Science Graphite lcsh:Microscopy 021102 mining & metallurgy lcsh:QC120-168.85 chunky graphite lcsh:QH201-278.5 lcsh:T spiky graphite Metallurgy [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology cast iron chemistry lcsh:TA1-2040 Tin engineering lcsh:Descriptive and experimental mechanics spheroidal graphite lcsh:Electrical engineering. Electronics. Nuclear engineering 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 Chunky graphite Spiky graphite |
| Zdroj: | Materials Materials, MDPI, 2020, 13 (23), pp.5402. ⟨10.3390/ma13235402⟩ Materials, Vol 13, Iss 5402, p 5402 (2020) Volume 13 Issue 23 |
| ISSN: | 1996-1944 |
| DOI: | 10.3390/ma13235402⟩ |
| Popis: | International audience; Chunky graphite appears easily in heavy-section spheroidal graphite cast irons and is known to affect their mechanical properties. A dedicated experiment has been developed to study the effect of the most important chemical variables reported to change the amount of chunky graphite, namely the content in silicon and in rare earths. Quite unexpectedly, controlled rare earths contents appear beneficial for decreasing chunky graphite when using standard charge materials. Tin is shown to decrease chunky graphite appearance and it is evidenced that this effect is not related to rare earths. Finally, the effect of tin and antimony are compared and it is noticed that both suppress chunky graphite but also lead to some spiky graphite when no rare earth is added. Chunky graphite negatively affects the room temperature mechanical properties, though much more in the case of low silicon spheroidal graphite cast irons than in high silicon ones. Spiky graphite has been found to be much more detrimental and should thus be avoided. |
| Databáze: | OpenAIRE |
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