Influence of long-term subcritical annealing on the unalloyed steel welded joint microstructure
Authors:
- Dominika Fajt,
- Mariusz Maślak,
- Marek Stankiewicz,
- Paulina Zajdel,
- Krzysztof Pańcikiewicz
Abstract
The article presents changes in the microstructure of hot-rolled unalloyed structural steel after the arc welding process and in the state after long-term exposure to 600 ◦C during operation. These studies enable a clear assessment of the effects of long-term exposure to elevated temperature relative to the as-welded condition, which has not been reported. The microstructure examination was carried out on welded joints in eight different zones of the joint. Studies have shown that the welding thermal cycle causes significant changes in the microstructure in the area of the base material heated above the A1 temperature—the heat-affected zone (HAZ)—and in the weld area in the case of multi-pass welding. The long-term exposure of the subcritical temperature of 600 ◦C on the welded joint leads to the phenomenon of cementite spheroidization in the pearlite in all zones of the joint, while preserving the band structure of the steel after rolling and the structural structure. In the case of the weld, acicular and side-plate ferrite disappearance was observed.
- Record ID
- CUTd9dbdf446fec47ac89e79a66e861e004
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2023
- Vol
- 16
- No
- 1
- Pages
- [1-12]
- Article number
- 304
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 11-12; Bibliografia (liczba pozycji) - 40; Oznaczenie streszczenia - Abstr.; Data udostępnienia on-line - 2022-12-28; Numeracja w czasopiśmie - Vol. 16, Iss. 1
- Substantive notes
- This article belongs to the Topic: Welding and Joining of Materials in Off-shore and Energy Industry
- Keywords in English
- spheroidizing, welded joint, structural steel
- ASJC Classification
- DOI
- DOI:10.3390/ma16010304 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/16/1/304 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/CUTd9dbdf446fec47ac89e79a66e861e004/
- URN
urn:pkr-prod:CUTd9dbdf446fec47ac89e79a66e861e004
* 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.