Abstract

The aim of this paper is to study the effect of Nitro carburizing on adhesive
wear resistance of carbon steel (1020 AISI). Four groups of specimens were
manufactured (A, B, C, D) with dimensions (D20*10 mm) according to ASTM
standard . Liquid nitriding at 550 °C for one hour was applied for group B, liquid
carburizing at 950°C for one hour was applied for group C, and double process of
nitriding the carburizing in the same conditions as mentioned before was applied
for group D. The hardness test, the adhesive wear resistance at different conditions
(time, sliding velocity and load) and photo microstructure was checked by optical
microscope, then phases was examined by the X-ray diffraction technique for all
the specimens. It is found that the adhesive wear resistance was improved by all
surface heat treatment. Nitriding and carburizing but Nitro carburizing it found that
best improvement.