Publikace detail

SPHERICAL INDENTATION APPROACH TO DETERMINE MECHANICAL PROPERTIES OF HADFIELD’S STEEL

Autoři: Kaya Utku | Schmidová Eva

Rok: 2016

Druh publikace: článek ve sborníku

Název zdroje: METAL 2016: 25th International Conference on Metallurgy and Materials

Název nakladatele: TANGER, spol. s r.o.

Místo vydání: Ostrava

Strana od-do: 730-734

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze	Sférická indentace k hodnocení mechanických vlastností Hadfieldovy oceli	Analyzovaná byla Hadfieldova ocel v aplikaci na železniční srdcovky. Intenzita a dosah dislokačního zpevnění vlivem provozního zatížení a zpevnění výbuchem byly hodnoceny metalograficky a použitím indentačních zkoušek.	Hadfieldova ocel; indentační zkouška
eng	SPHERICAL INDENTATION APPROACH TO DETERMINE MECHANICAL PROPERTIES OF HADFIELD’S STEEL	Hadfield’s steel has been widely used for railway switch and frogs because of its desirable mechanical behavior under high load applications. Austenitic Hadfield´s steel containing about 1.2 mass % of C and 12 mass % of Mn is known for a high resistance to impact wear caused by rapid cold work hardening. In this study, several methods have been performed to examine the mechanical properties of Hadfield’s steel. Dislocations and white etching layers were observed during metallographic analysis. Besides that, indentation method was applied for evaluation of the elastic-plastic response of the surface. In addition to our previous studies, the spherical indentation method was introduced to obtain more accurate results for rough(uneven) surface. Force-Indentation depth graphs were examined by the specific method, moreover, real rail sample, with or without explosive hardening samples were compared by means of the new method.	Hadfield steel; Metallography; Spherical Indentation test

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