1 results listed
In this study, the wear performance of the hardfacing
process used to economically extend the life of the forging dies
used in the hot forging process in the steel industry was
investigated. Hardfacing is a rapid die repair method that is
applied locally or completely to the damaged areas in the hot
forging die. In this study, 56NiCrMoV7 (DIN 1.2714) hot work
tool steel was used as the base material. CITODUR 600/B Febased electrode, i.e. Fe-7%Cr-0.4%C, was used for hardfacing.
Hardfacing was carried out by the arc welding method. The wear
tests were performed using ball-on-disc CSM Instruments
Tribometer. A counter ball specimen was Al2O3
with dimensions
of Ø6 mm. Wear performance was reported for both tool steel
and hardfaced layer at normal load of 10N and linear speed of
12.8 cm·s
-1. It was shown that the hardfacing layer exhibited
better wear resistance than the tool steel for all testing results.
The overall friction coefficient was higher in hardfacing layer
than in tool steel. Surface hardness of the hardfaced layer and
tool steel samples was obtained. It was observed that the
hardfacing with CITODUR 600/B leads to an increase the wear
life of the dies which are made from 56NiCrMoV7 tool steel.
International Iron & Steel Symposium
UDCS
Simge Gençalp İrizalp
Yiğit Erçayhan
Ezgi Yeter