Determination of tribological properties of ion-nitrided AISI 5140 steel

Journal Article · Sun Sep 15 04:00:00 EDT 2002 · Materials Characterization

DOI:https://doi.org/10.1016/S1044-5803(03)00008-1· OSTI ID:20748671

Alsaran, Akguen

AISI 5140 low-alloy steel is ion-nitrided under different process parameters, including time (1, 4, and 8 h), temperature (450, 500, and 550 deg. C), and various gas mixtures at a working pressure of 5 mbar. The ion-nitriding behaviors of AISI 5140 steel have been assessed by evaluating tribological properties, surface hardness, surface roughness, compound layer thickness, and case depth by using a pin-on-disk wear machine, microhardness tester, surface profilometer, and scanning electron microscopy (SEM). It is found that ion nitriding improves the wear rate, and the presence of a hard and brittle compound layer on the surface causes an increase in wear of specimen surface. It is finally observed that ion nitriding parameters have no dominant effect on the friction coefficient.

• OSTI ID: 20748671
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 2 Vol. 49; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FRICTION
IONS
LAYERS
LOW ALLOY STEELS
MICROHARDNESS
MIXTURES
ROUGHNESS
SCANNING ELECTRON MICROSCOPY
SURFACES
THICKNESS
WEAR