Experimental Investigation on Roughness Parameters of 42CrMo4 Steel Surface During Nitrocarburizing Treatment
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Date
2022-10-01
Journal Title
Journal ISSN
Volume Title
Publisher
Tribology in Industry
Abstract
To evaluate the performance characteristics of various surfaces, a
detailed and precise description of the surface's micro-geometry
properties is required. In this context, roughness is a reliable indicator
of the possible behavior of mechanical piece performance, since
distortions on the surface can form a direct cause for cracks or
corrosion. As a result, characterization of surface roughness is very
important for zero-defect fabrication. This paper investigates the 2D
roughness parameters of a 42CrMo4 steel surface before and after
nitrocarburizing treatment. The latter was accomplished at 580 °C for
10 hours in a salt bath containing sodium cyanates and potassium
carbonates. A surface profilometer was used to analyze the influence
of nitrocarburizing treatment on the material's surface roughness
parameters behavior. The parameters that comprehensively describes
the surface structure, namely the amplitude, spacing, hybrid
parameters, and material ratio parameters were highlighted. The
results of the experiments indicated that the nitrocarburizing
treatment was effective in increasing almost all the 2D roughness
parameters of the 42CrMo4 steel surface.
Description
To evaluate the performance characteristics of various surfaces, a
detailed and precise description of the surface's micro-geometry
properties is required. In this context, roughness is a reliable indicator
of the possible behavior of mechanical piece performance, since
distortions on the surface can form a direct cause for cracks or
corrosion. As a result, characterization of surface roughness is very
important for zero-defect fabrication. This paper investigates the 2D
roughness parameters of a 42CrMo4 steel surface before and after
nitrocarburizing treatment. The latter was accomplished at 580 °C for
10 hours in a salt bath containing sodium cyanates and potassium
carbonates. A surface profilometer was used to analyze the influence
of nitrocarburizing treatment on the material's surface roughness
parameters behavior. The parameters that comprehensively describes
the surface structure, namely the amplitude, spacing, hybrid
parameters, and material ratio parameters were highlighted. The
results of the experiments indicated that the nitrocarburizing
treatment was effective in increasing almost all the 2D roughness
parameters of the 42CrMo4 steel surface.