Metalurgija, Vol. 61 No. 1, 2022.
Prethodno priopćenje
Analysis of mechanisms for hardening constructional steels by structure parameters
A. Kanaev
; S. Seifullin Kazakh Agro Technical University, Nur-Sultan, Kazakhstan
A. Gulyarenko
; S. Seifullin Kazakh Agro Technical University, Nur-Sultan, Kazakhstan
A. Bogomolov
orcid.org/0000-0002-4926-0925
; Toraighyrov University, Pavlodar, Kazakhstan
T. Sarsembaeva
; S. Seifullin Kazakh Agro Technical University, Nur-Sultan, Kazakhstan
Sažetak
Contribution of different hardening mechanisms into tensile strength of carbon and low alloy steels has been evaluated on the basis of analysis of research papers and own experimental studies. It has been found out that solid solution and grain boundary strengthening provide the most contribution to tensile strength of normalized steel, whereas in structural low alloy steel low alloy steel the role of dispersion strengthening is noticed (21,4 %) along with the above strengthening components. It has been shown that thermal and chemical treatment of St5 grade steel leads to around 27,6 % growth of dislocations strengthening in rolled steel in case of accelerated cooling of hot wrought austenite.
Ključne riječi
steel; thermal treatment; phase components; tensile strength; hardening
Hrčak ID:
262435
URI
Datum izdavanja:
3.1.2022.
Posjeta: 1.079 *