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3D characterization of structure and micro-porosity in two cast irons with spheroidal graphite
- Source :
- Materials Characterization. 158:109991
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Formation of low density graphite phase during solidification increases the volume of semi-solid cast iron with spheroidal graphite (SGI) and resulted pressure could help eliminate shrinkage micro-porosity in casting. Therefore, micro-porosity in casting can be linked to 3D graphite nodule structure. Two experimental SGI's with different levels of shrinkage micro-porosity in castings were intentionally produced by variation in inoculation parameters which influenced graphite nodule structure. 3D-morphological characteristics of graphite nodules and micro-porosity level were determined by μCT scanning. The obtained statistical data was discussed with respect to graphite nodule solidification mode and casting soundness. The capabilities of μCT scanning in predicting micro-shrinkage in SGI casting were compared to the other traditionally used techniques.
- Subjects :
- 010302 applied physics
Nodule (geology)
Materials science
Mechanical Engineering
02 engineering and technology
engineering.material
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Casting
Characterization (materials science)
Mechanics of Materials
Phase (matter)
0103 physical sciences
Micro porosity
engineering
General Materials Science
Cast iron
Graphite
Composite material
0210 nano-technology
Shrinkage
Subjects
Details
- ISSN :
- 10445803
- Volume :
- 158
- Database :
- OpenAIRE
- Journal :
- Materials Characterization
- Accession number :
- edsair.doi...........86dc488e8940be7fa57c98dfba02f352