scholarly journals Effect of plasma nitriding time on the structural and mechanical properties of AISI‐O1 steel

2020 ◽  
Vol 2 (12) ◽  
Author(s):  
Luciane Norberto M. Araújo ◽  
Armystron Gonçalves F. Araújo ◽  
Maria Onaira G. Ferreira ◽  
Rômulo Ribeiro M. Sousa ◽  
Laécio S. Cavalcante ◽  
...  

1992 ◽  
Vol 59 (3-4) ◽  
pp. 253-260 ◽  
Author(s):  
M.M. Ibrahim ◽  
F.M. El-Hossary ◽  
N.Z. Negm ◽  
M. Abed ◽  
R.E. Ricker


2021 ◽  
Vol 16 (1) ◽  
pp. 43-48
Author(s):  
Michal Krbaťa ◽  
◽  
Jana Escherová ◽  

The paper deals with the change in mechanical properties and wear of 1.2842 universal tool steel after plasma nitriding, which is widely used to produce cutting tools with good durability and low operating costs. Plasma nitriding was performed at a temperature of 500 °C for 10-hour period in a standard N2 /H2 atmosphere with 1:3 gases ratio. Microstructure, phase structure, thickness of a nitriding layer and surface roughness of samples were measured with optical microscopes and a profilometer. Verification of a chemical composition was carried out on the BAS TASMAN Q4 device. Wear resistance was measured on a universal TRIBOLAB UTM 3 tribometer, through a, “pin on disc“ method. The results of experiments have shown that plasma nitriding process, significantly improves the mechanical and tribological properties of selected materials.



2018 ◽  
Vol 165 ◽  
pp. 21002 ◽  
Author(s):  
Antonio J. Abdalla ◽  
Douglas Santos ◽  
Getúlio Vasconcelos ◽  
Vladimir H. Baggio-Scheid ◽  
Deivid F. Silva

In this work 300M steel samples is used. This high-strength steel is used in aeronautic and aerospace industry and other structural applications. Initially the 300 M steel sample was submitted to a heat treatment to obtain a bainític structure. It was heated at 850 °C for 30 minutes and after that, cooled at 300 °C for 60 minutes. Afterwards two types of surface treatments have been employed: (a) using low-power laser CO2 (125 W) for introducing carbon into the surface and (b) plasma nitriding at a temperature of 500° C for 3 hours. After surface treatment, the metallographic preparation was carried out and the observations with optical and electronic microscopy have been made. The analysis of the coating showed an increase in the hardness of layer formed on the surface, mainly, among the nitriding layers. The mechanical properties were analyzed using tensile and fatigue tests. The results showed that the mechanical properties in tensile tests were strongly affected by the bainitic microstructure. The steel that received the nitriding surface by plasma treatment showed better fatigue behavior. The results are very promising because the layer formed on steel surface, in addition to improving the fatigue life, still improves protection against corrosion and wear.



2009 ◽  
Vol 6 (S1) ◽  
pp. S314-S320 ◽  
Author(s):  
Luciano Dutrey ◽  
Evangelina De Las Heras ◽  
Hernán G. Svoboda ◽  
Pablo A. Corengia


2021 ◽  
Vol 406 ◽  
pp. 126675
Author(s):  
Y. Hong ◽  
D.D. Dong ◽  
S.S. Lin ◽  
W. Wang ◽  
C.M. Tang ◽  
...  


2006 ◽  
Vol 67 (11) ◽  
pp. 2351-2357 ◽  
Author(s):  
S.H. Mohamed ◽  
A.M. Abd El-Rahman ◽  
A.M. Salem ◽  
L. Pichon ◽  
F.M. El-Hossary


2014 ◽  
Vol 223 ◽  
pp. 127-136
Author(s):  
Joanna Kacprzyńska-Gołacka ◽  
Karolina Rydzewska ◽  
Adam Mazurkiewicz ◽  
Jan Kusiński ◽  
Jerzy Smolik ◽  
...  

One of the most perspective directions of the development of surface engineering is related to hybrid technologies. The best-known and widely used hybrid surface treatment technology is a combination of a gas or plasma nitriding process with the process of the deposition of hard antiwear coatings by means of PVD methods. The paper presents the influence of the thickness of layers in the multilayer coating on tribological properties of hybrid layers – PN + AlCrTiNmultinano obtained on the EN X32CrMoV3.3 hot working steel. The research methods concentrated on the analysis of mechanical properties, surface topography and microstructure, and tribological properties. The studies on mechanical properties included tests on hardness using the nanoindentation method and tests on adhesion using the scratchtest. The analysis of surface topography and microstructure was examined by scanning electron microscopy and scanning transmission electron microscopy. The tribological properties were examined using the ball-on-disc method. The coating was tested with alumina balls as counterparts at room temperature. The authors indicate that the PN + AlCrTiNmultinano hybrid layers are characterized by excellent mechanical properties and tribological resistance. In this paper, the authors confirmed that the thickness of layers in a multilayer coating is important in shaping the mechanical and tribological properties of the PN + AlCrTiNmultinano hybrid layer.



2019 ◽  
Vol 357 ◽  
pp. 1027-1036 ◽  
Author(s):  
Wolfgang Tillmann ◽  
Nelson Filipe Lopes Dias ◽  
Dominic Stangier


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