Improving the dimensional stability and mechanical properties of AISI 316L + B sinters by Si3N4 addition
Authors:
- Mateusz Skałoń,
- Ricardo Buzolin,
- Jan Kazior,
- Christof Sommitsch,
- Marek Hebda
Abstract
The following paper describes a new and e ective method to obtain high-density sinters with simultaneously decreased distortions, produced by one press and sinter operation. This e ect was achieved through the induced disappearance of the eutectic liquid phase. The study was carried out on AISI 316L stainless steel powder that was mixed with elemental boron and silicon nitride. Boron was used as a sintering process activator. The scientific novelty of this publication consists of the use of a silicon nitride as a solid-state nitrogen carrier that was intended to change the borides’ morphology by binding boron. Based on the thermodynamic calculations, 20 blends of various compositions were tested for physical properties, porosity, microstructure, and mechanical properties. Moreover, phase compositions for selected samples were analyzed. It was shown that the addition of silicon nitride as a nitrogen carrier decreases the boron-based eutectic phase volume and both increases the mechanical properties and decreases after-sintering distortions. An explanation of the observed phenomena was also proposed.
- Record ID
- CUTc4e9547d52e044669c99a0069a16287f
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2019
- Vol
- 12
- No
- 11
- Pages
- [1-15]
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 13-15; Bibliografia (liczba pozycji) - 36; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 12, Iss. 11, Spec. Iss.
- Substantive notes
- Special Issue: Optimal Design of Materials and Structures
- Keywords in English
- boron, 316L, silicon nitride, shape distortion, liquid phase sintering, mechanical properties
- DOI
- DOI:10.3390/ma12111798 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/12/11/1798 Opening in a new tab
- 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/CUTc4e9547d52e044669c99a0069a16287f/
- URN
urn:pkr-prod:CUTc4e9547d52e044669c99a0069a16287f
* 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.