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[62080] Artykuł: Fracture toughness of the high-strength steels within the ductile to cleavage transition temperature range – master curvesCzasopismo: Physicochemical Mechanics of Materials Tom: 53, Zeszyt: 2, Strony: 141-150ISSN: 1573-885X Wydawca: SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA Opublikowano: 2017 Liczba arkuszy wydawniczych: 0.50 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Recenzowana publikacja w języku innym niż polski w zagranicznym czasopiśmie spoza listy Punkty MNiSW: 1 Klasyfikacja Web of Science: Article ![]() ![]() Keywords: fracture  toughness  Master  Curve  high-strength  steels  thickness  effect  ductile-to-brittle transition  |
The fracture toughness of high-strength ferritic steels within the temperature range of ductile-to-cleavage transition is analyzed. We tested two steels: S960QC and Hardox-400. The experimental results are compared with the results obtained by using the standard Master Curve (MC) equation. It turns out that the MC equation can be adopted to predict the fracture toughness of the high-strength steels after certain modifications. The shape of the formula can be preserved but some coefficients should be changed. The relationship between the fracture toughness and the thickness of an element included in the MC formula does not exist in the case of high-strength steels. One formula cannot be proposed for the MC of the tested steels, in contrast to the steels with a yield stress below 825 MPa.