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- Title
Equiaxed and Oriented Microstructure in High Chromium Cast Iron.
- Authors
Kopyciński, D.; Guzik, E.; Szczęsny, A.
- Abstract
It has been proved that an addition of boron carbide and shredded steel scrap introduced as an inoculants to the chromium white cast iron changes the microstructure of castings. The operation increases the number of crystallization nuclei of M7C3 carbides. In this case the B4C carbides act as substrates for the nucleation of M7C3 (chromium carbides). Castings after B4C inoculation have fine grain fracture surface. Primary precipitates of chromium carbide also appeared, lowering the mechanical properties of as-cast parts. Additionally, in order to increase the mechanical properties of chromium cast iron, unidirectional solidification was used. In this case, 0.3 wt. % cerium was used as inoculant.
- Subjects
CAST-iron; BORON carbides; CHROMIUM carbide; CHROMIUM iron alloys; FERROCHROME; FERROSILICON
- Publication
Archives of Metallurgy & Materials, 2014, Vol 59, Issue 2, p723
- ISSN
1733-3490
- Publication type
Article
- DOI
10.2478/amm-2014-0119