Structural, mechanical and tribological properties of duplex-treated AISI 5140 steel

Journal Article · Sat Jan 15 04:00:00 EST 2005 · Materials Characterization

DOI:https://doi.org/10.1016/j.matchar.2004.11.009· OSTI ID:20748657

Alsaran, Akguen ^[1]; Celik, Ayhan ^[1]; Karakan, Mehmet ^[1]

---

1. Department of Mechanical Engineering, Ataturk University, 25240, Erzurum (Turkey)

The structure, hardness, adhesion, surface roughness and tribological properties of duplex-surface-treated (TiN/plasma nitrided), directly TiN-coated and ion-nitrided AISI 5140 steel were investigated using X-ray diffraction, SEM, optical microscopy, a microhardness tester, a scratch tester and a pin-on-disc tribotester. After the plasma nitriding process, the transition treatments were realized to evaluate the effect of the compound layer. It was found that the relative intensity line of TiN (200) and surface roughness increased, but the coating hardness and critical load (Lc) decreased with an increasing amount of {epsilon}-Fe{sub 2-3}N iron nitride in the compound layer. The better tribological properties were obtained with coatings applied on substrates, which included a large amount of {gamma}'-Fe{sub 4}N iron nitride after plasma nitriding.

• OSTI ID: 20748657
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: 1 Vol. 54; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESION
COATINGS
IRON NITRIDES
LAYERS
MICROHARDNESS
OPTICAL MICROSCOPY
PLASMA
ROUGHNESS
SCANNING ELECTRON MICROSCOPY
STEELS
SUBSTRATES
SURFACES
TIN
X-RAY DIFFRACTION