Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
KRAIŠNIK, M. ČEP, R. KOUŘIL, K. BALOŠ, S. ANTIĆ, A. MILUTINOVIĆ, M.
Originální název
Characterization of Microstructural Damage and Failure Mechanisms in C45E Structural Steel under Compressive Load
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In this paper, the microstructural damage evolution of a steel with a ferrite-pearlite microstructure (C45E) was investigated during the process of cold upsetting. The development and the accumulation of microstructural damage were analyzed in different areas of samples that were deformed at different strain levels. The scanning electron microscopy (SEM) results showed that various mechanisms of nucleation of microcavities occurred during the upsetting process. In quantitative terms, microcavities were predominantly generated in pearlite colonies due to the fracture of cementite lamellae. In addition, the mechanism of decohesion had a significant influence on the development of a macroscopic crack, since a high level of microcracks, especially at higher degrees of deformation, was observed at the ferrite/pearlite or ferrite/ferrite interfaces. It was found that the distribution of microcavities along the equatorial plane of the sample was not uniform, as the density of microcavities increased with increasing strain level. The influence of stress state, i.e., stress triaxiality, on the nucleation and distribution of microcracks, was also analyzed.
Klíčová slova
structural steel; microstructure; damage mechanisms; microcracks; upsetting; FEM
Autoři
KRAIŠNIK, M.; ČEP, R.; KOUŘIL, K.; BALOŠ, S.; ANTIĆ, A.; MILUTINOVIĆ, M.
Vydáno
19. 3. 2022
Nakladatel
MDPI
Místo
BASEL
ISSN
2073-4352
Periodikum
Crystals
Ročník
12
Číslo
3
Stát
Švýcarská konfederace
Strany od
1
Strany do
20
Strany počet
URL
https://www.mdpi.com/2073-4352/12/3/426
Plný text v Digitální knihovně
http://hdl.handle.net/11012/204473
BibTex
@article{BUT177810, author="Milija {Kraišnik} and Robert {Čep} and Karel {Kouřil} and Sebastian {Baloš} and Aco {Antić} and Mladomir {Milutinović}", title="Characterization of Microstructural Damage and Failure Mechanisms in C45E Structural Steel under Compressive Load", journal="Crystals", year="2022", volume="12", number="3", pages="1--20", doi="10.3390/cryst12030426", issn="2073-4352", url="https://www.mdpi.com/2073-4352/12/3/426" }