Effect of plasma nitrocarburizing temperature on the wear behavior of AISI 4140 steel

2010 ◽  
Vol 205 ◽  
pp. S84-S89 ◽  
Author(s):  
M. Heydarzadeh Sohi ◽  
M. Ebrahimi ◽  
A. Honarbakhsh Raouf ◽  
F. Mahboubi
Keyword(s):  
Wear Behavior ◽  
Aisi 4140 Steel ◽  
Aisi 4140 ◽  
Plasma Nitrocarburizing

MODELING AND INVESTIGATION OF THE WEAR RESISTANCE OF SALT BATH NITRIDED AISI 4140 VIA ANN

2013 ◽  
Vol 20 (03n04) ◽  
pp. 1350033 ◽  
Author(s):  
ŞERAFETTIN EKINCI ◽  
AHMET AKDEMIR ◽  
HUMAR KAHRAMANLI
Keyword(s):  
Wear Resistance ◽  
Friction Coefficient ◽  
Surface Characterization ◽  
Wear Behavior ◽  
Surface Hardness ◽  
Salt Bath ◽  
Back Propagation Algorithm ◽  
Aisi 4140 Steel ◽  
Aisi 4140 ◽  
Sliding Distance

Nitriding is usually used to improve the surface properties of steel materials. In this way, the wear resistance of steels is improved. We conducted a series of studies in order to investigate the microstructural, mechanical and tribological properties of salt bath nitrided AISI 4140 steel. The present study has two parts. For the first phase, the tribological behavior of the AISI 4140 steel which was nitrided in sulfinuz salt bath (SBN) was compared to the behavior of the same steel which was untreated. After surface characterization using metallography, microhardness and sliding wear tests were performed on a block-on-cylinder machine in which carbonized AISI 52100 steel discs were used as the counter face. For the examined AISI 4140 steel samples with and without surface treatment, the evolution of both the friction coefficient and of the wear behavior were determined under various loads, at different sliding velocities and a total sliding distance of 1000 m. The test results showed that wear resistance increased with the nitriding process, friction coefficient decreased due to the sulfur in salt bath and friction coefficient depended systematically on surface hardness. For the second part of this study, four artificial neural network (ANN) models were designed to predict the weight loss and friction coefficient of the nitrided and unnitrided AISI 4140 steel. Load, velocity and sliding distance were used as input. Back-propagation algorithm was chosen for training the ANN. Statistical measurements of R2, MAE and RMSE were employed to evaluate the success of the systems. The results showed that all the systems produced successful results.

Use of a solid carbon precursor for DC plasma nitrocarburizing of AISI 4140 steel

Vacuum ◽  
2018 ◽  
Vol 149 ◽  
pp. 146-149 ◽  
Author(s):  
Anke Dalke ◽  
Igor Burlacov ◽  
Heinz-Joachim Spies ◽  
Horst Biermann
Keyword(s):  
Carbon Precursor ◽  
Solid Carbon ◽  
Dc Plasma ◽  
Aisi 4140 Steel ◽  
Aisi 4140 ◽  
Plasma Nitrocarburizing

scholarly journals Improvement Effect of Green Lubricants on the Tribological and Mechanical Performance of 4140 Steel

2019 ◽  
Vol 9 (22) ◽  
pp. 4896 ◽  
Author(s):  
María T. Hernández-Sierra ◽  
Micael G. Bravo-Sánchez ◽  
José E. Báez ◽  
Luis D. Aguilera-Camacho ◽  
J. Santos García-Miranda ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Friction And Wear ◽  
Mechanical Performance ◽  
Wear Behavior ◽  
Industrial Applications ◽  
Kinetic Friction ◽  
Friction And Wear Behavior ◽  
Aisi 4140 Steel ◽  
Aisi 4140 ◽  
Improvement Effect

Although much has been learned and investigated about environmentally friendly lubricants in recent years, several issues remain critical to their use in specific applications. A key point that could be limiting their utilization is that the effect of green lubricants on the tribological and mechanical properties of the elements has not been thoroughly studied since such attributes determine their performance in industrial applications. For this reason, in this research, the effect of green lubrication on the tribological and hardness properties of AISI 4140 steel was studied. The performance of three bio-based lubricants was studied and compared to that of five of the most representative lubricants. First, the lubricants were chemically and physically characterized. Then, the effect of each lubricant on the friction and wear behavior of the system was analyzed by kinetic friction coefficient, wear rate calculations, and microhardness measurements. In general, the bio-based lubricants exhibited the lowest values of friction and wear. Further the mechanical properties of the systems lubricated by these lubricants were not affected or were affected to a lesser degree.

Microstructure and Wear Behavior of TIG Surface-Alloyed AISI 4140 Steel

2010 ◽  
Vol 54 (1) ◽  
pp. 67-79 ◽  
Author(s):  
MUSTAFA ULUTAN ◽  
M. MUSTAFA YILDIRIM ◽  
SONER BUYTOZ ◽  
OSMAN N. ÇELIK
Keyword(s):  
Wear Behavior ◽  
Aisi 4140 Steel ◽  
Aisi 4140

AISI 4140 X H13 STEEL SLIDING WEAR BEHAVIOR

2019 ◽  
Author(s):  
Eric Espíndola ◽  
Mateus José Araújo de Souza ◽  
BEATRIZ SEABRA MELO ◽  
Vinicius Silva dos Reis ◽  
Clóvis Santana ◽  
...  
Keyword(s):  
Sliding Wear ◽  
Wear Behavior ◽  
H13 Steel ◽  
Aisi 4140

Weld quality and productivity of AISI 4140 steel welded by unpulsed and pulsed GMAW

2018 ◽  
Vol 60 (2) ◽  
pp. 149-155 ◽  
Author(s):  
Turhan Kursun ◽  
Tanju Teker
Keyword(s):  
Weld Quality ◽  
Aisi 4140 Steel ◽  
Aisi 4140
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