In situ formation of TiB2 in Fe-B system with titanium addition and its influence on phase composition, sintering process and mechanical properties
Authors:
- Mateusz Skałoń,
- Marek Hebda,
- Benedikt Schrode,
- Roland Resel,
- Jan Kazior,
- Christof Sommitsch
Abstract
Interaction of iron and boron at elevated temperatures results in the formation of an E (Fe + Fe2B) eutectic phase that plays a great role in enhancing mass transport phenomena during thermal annealing and therefore in the densification of sintered compacts. When cooled down, this phase solidifies as interconnected hard and brittle material consisting of a continuous network of Fe2B borides formed at the grain boundaries. To increase ductile behaviour, a change in precipitates’ stoichiometry was investigated by partially replacing iron borides by titanium borides. The powder of elemental titanium was introduced to blend of iron and boron powders in order to induce TiB2 in situ formation. Titanium addition influence on microstructure, phase composition, density and mechanical properties was investigated. The observations were supported with thermodynamic calculations. The change in phase composition was analysed by means of dilatometry and X-ray diffraction (XRD) coupled with thermodynamic calculations.
- Record ID
- CUT9d708a196f07494e8e625a3d66e0922b
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2019
- Vol
- 12
- No
- 24
- Pages
- [1-12]
- Article number
- 4188
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 11-12; Bibliografia (liczba pozycji) - 28; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 12, Iss. 24, Spec. Iss.
- Substantive notes
- Special Issue: Materials Sintering
- Art. zawiera: Supplementary Material
- Keywords in English
- titanium diboride, titanium, boron, iron, dilatometry, liquid phase, phase composition, sintering
- DOI
- DOI:10.3390/ma12244188 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/12/24/4188 Opening in a new tab
- Related project
- Modelowanie morfologii i kinetyki krzepnięcia fazy ciekłej w procesie spiekania proszku żelaza modyfikowanego borem. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT9d708a196f07494e8e625a3d66e0922b/
- URN
urn:pkr-prod:CUT9d708a196f07494e8e625a3d66e0922b
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.