Impact fracture surfaces as the indicators of structural steel post-fire susceptibility to brittle cracking
Authors:
- Mariusz Maslak,
- Michal Pazdanowski,
- Marek Stankiewicz,
- Anna Wassilkowska,
- Paulina Zajdel,
- Michal Zielina
Abstract
The results of experimental research on forecasting post-fire resistance to brittle failure of selected steel grades used in construction are presented and discussed in this paper. The conclusions are based on detailed analysis of fracture surfaces obtained in instrumented Charpy tests. It has been shown that the relationships formulated based on these tests agree well with conclusions drawn based on precise analysis of appropriate F–s curves. Furthermore, other relationships between lateral expansion LE and energy Wt required to break the sample constitute an additional verification in both qualitative and quantitative terms. These relationships are accompanied here by values of the SFA(n) parameter, which are different, depending on the character of the fracture. Steel grades differing in microstructure have been selected for the detailed analysis, including: S355J2+N—representative for materials of ferritic-pearlitic structure, and also stainless steels such as X20Cr13—of martensitic structure, X6CrNiTi18-10—of austenitic structure and X2CrNiMoN22-5-3 duplex steel—of austenitic-ferritic structure.
- Record ID
- CUT6fe0668a401d4f0381b2c60a122e6695
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2023
- Vol
- 16
- No
- 8
- Pages
- [1-31]
- Article number
- 3281
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 29-31; Bibliografia (liczba pozycji) - 57; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 16, Iss. 8
- Substantive notes
- This article belongs to the Special Issue: Investigation of Microstructural and Corrosion Properties of Steels and Light Alloys
- Keywords in English
- steel microstructure, post-fire properties, fracture surface, brittle cracking, impact test, shear fracture appearance, toughness
- ASJC Classification
- DOI
- DOI:10.3390/ma16083281 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/16/8/3281 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT6fe0668a401d4f0381b2c60a122e6695/
- URN
urn:pkr-prod:CUT6fe0668a401d4f0381b2c60a122e6695
* 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.