Wear properties of induction hardened, conventional plasma nitrided and pulse plasma nitrided AISI 4140 steel in dry sliding conditions

Wear ◽  
1999 ◽  
Vol 232 (2) ◽  
pp. 231-242 ◽  
Author(s):  
B Podgornik ◽  
J Vižintin ◽  
V Leskovšek
Keyword(s):  
Pulse Plasma ◽  
Dry Sliding ◽  
Wear Properties ◽  
Aisi 4140 Steel ◽  
Aisi 4140

Wear Properties of Plasma Nitrided Steel in Dry Sliding Conditions

1999 ◽  
Vol 121 (4) ◽  
pp. 802-807 ◽  
Author(s):  
B. Podgornik ◽  
J. Vizˇintin
Keyword(s):  
Tribological Properties ◽  
Plasma Nitriding ◽  
Testing Machine ◽  
Compound Layer ◽  
Wear Testing ◽  
Pulse Plasma ◽  
Dry Sliding ◽  
Wear Properties ◽  
Aisi 4140 Steel ◽  
Aisi 4140

In our study, we investigated the wear, mechanical and tribological properties of plasma and pulse plasma nitrided AISI 4140 steel compared to hardened steel. Contact surfaces of the samples were fully characterized using metallographic, SEM microscopic, microhardness, and profilometric techniques, before and after wear testing. Wear tests were performed on a pin-on-disk wear testing machine in which nitrided pins were mated to hardened ball bearing steel disks under dry sliding conditions. Results show only slight improvement of the tribological properties of AISI 4140 steel after plasma and pulse plasma nitriding compared to hardening. However, improvements become more evident when testing conditions become more severe. It was also found that compound layer should be removed from the nitrided surface to avoid impairment of the tribological properties by fracture of hard and brittle compound layer followed by the formation of hard abrasive particles.

Effect of TiCN and AlCrN Coating on Tribological Behaviour of Plasma-nitrided AISI 4140 Steel

2017 ◽  
Vol 5 (2) ◽  
pp. 1-17
Author(s):  
Santosh Vitthal Bhaskar ◽  
Hari Narayan Kudal
Keyword(s):  
Physical Vapor Deposition ◽  
Sliding Wear ◽  
Plasma Nitriding ◽  
Titanium Carbonitride ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Tribological Behaviour ◽  
Wear Properties ◽  
Aisi 4140 Steel ◽  
Aisi 4140

In the present article, samples made of AISI 4140 steel, pre-treated with plasma nitriding (PN), and coated with different coatings like Titanium Carbonitride (TiCN), Aluminium Chromium Nitride (AlCrN), using Physical Vapor Deposition (PVD) technique, were investigated in terms of their microhardness, surface roughness, and dry sliding wear behaviour. Wear tests were performed with a pin-on-disc machine. Coatings were deposited on plasma nitrided samples. The wear behaviour, and wear mechanisms of TiCN- and AlCrN-coated, PN treated AISI 4140 specimens were investigated using a field emission Scanning Electron Microscope (SEM), equipped with an Energy Dispersive X-ray (EDX) analyzer. An SEM was used to study the surface morphology of the worn surfaces. Also, adhesion tests were conducted to investigate the adhesion quality of the coated specimens. The results of the investigation showed improved wear properties. Furthermore, the compound layer formed during nitriding was found to act as an intermediate hard layer, leading to superior sliding wear properties.

Wear Properties of a Sulfnitrided Layer Formed on AISI 4140 Steel by Using Plasma Treatments

2019 ◽  
Vol 74 (9) ◽  
pp. 880-884 ◽  
Author(s):  
Hyunjun Park ◽  
Hanchan Lee ◽  
Kyoungil Moon ◽  
Boongjoo Lee
Keyword(s):  
Wear Properties ◽  
Aisi 4140 Steel ◽  
Plasma Treatments ◽  
Aisi 4140

Tribological properties of plasma and pulse plasma nitrided AISI 4140 steel

1998 ◽  
Vol 108-109 ◽  
pp. 454-460 ◽  
Author(s):  
B Podgornik ◽  
J Vižintin ◽  
V Leskovšek
Keyword(s):  
Tribological Properties ◽  
Pulse Plasma ◽  
Aisi 4140 Steel ◽  
Aisi 4140

Inspection of nickel-based boron carbide PTA coatings on AISI 4140 steel

2019 ◽  
Vol 71 (4) ◽  
pp. 548-556
Author(s):  
Gökçe Mehmet AY ◽  
Osman Nuri ÇELİK
Keyword(s):  
Boron Carbide ◽  
Base Material ◽  
Optimal Solution ◽  
Wear Properties ◽  
Content Type ◽  
Aisi 4140 Steel ◽  
Melt Pool ◽  
Aisi 4140 ◽  
Novel Method ◽  
Nickel Base

Purpose Plasma transferred arc (PTA) coating is a novel method for surface-coating applications. In this method, the substrate is melted using a plasma arc, and surfacing agents such as carbides are introduced to the melt pool. The purpose of this study is to investigate the effect of boron carbide (B4C) in nickel-based coating on AISI 4140 steel. Design/methodology/approach Samples were tested on a ball-on-disc wear device, and the microstructure, as well as wear properties, were investigated using SEM and XRD. Findings The effect of B4C addition was shown to be linear, with a p-value of 0.0248, indicating strong evidence. The reason for this increase was found to be the increase in third-body generation resulting from hard phases that form couples with the soft base material, nickel. It was concluded that using 6 per cent B4C was the optimal solution. Originality/value In the literature, the effect of neither low temperature on a nickel coating with B4C nor B4C as a single surfacing agent in a nickel base has been investigated.

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