Vol: 32 , Nr: 3 , Art.: 2
Tytuł / Title:
Effect of temperature on work-of-fracture (impact strength) of ferritic ductile iron
Autorzy / Authors:
DUDYK Maksymilian dr inż.
KRZYWOŃ Bogusław mgr inż.
PŁONKA Stanisław prof. dr hab. inż.
RASZKA Tomasz mgr inż.
Department of Manufacturing Technology and Automation, University of Bielsko-Biała
Słowa kluczowe / key words:
ductile iron; mechanical properties; work-of-facture; impact strength
Streszczenie / Summary:

The paper presents test results of ferritic ductile iron EN-GJS-400-15 Grade (according to PN-
-EN 1563:2000 standard) manufactured within industrial environment. Properly prepared and
performed physical-chemical processes enabled to obtain suitable structure and mechanical properties
of castings to automotive applications, fulfilling requirements of domestic and foreign customers.
There were performed in wide range tests of effect of low temperatures (from −60 °C to
20 °C) on work-of-fracture and impact strength of specimens without notch, with U-notch, and
specimens with V-notch. On base of performed analysis of obtained work-of-fracture results and
impact strength as well as performed the least-squares approximation, it has been demonstrated
that decrease of temperature of the specimens below 0 °C reduces significantly plasticity of ferritic
ductile iron.