Analysis of the wear properties of through hardened AISI-4140 alloy steel using Taguchi technique

Author(s):  
Ranbir Singh Rooprai ◽  
Harvinder Singh ◽  
Talvinder Singh ◽  
Yogesh Kumar Singla
2009 ◽  
Vol 6 (S1) ◽  
pp. S314-S320 ◽  
Author(s):  
Luciano Dutrey ◽  
Evangelina De Las Heras ◽  
Hernán G. Svoboda ◽  
Pablo A. Corengia

Author(s):  
Santosh Vitthal Bhaskar ◽  
Hari Narayan Kudal

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.


2015 ◽  
Vol 60 (2) ◽  
pp. 1331-1334 ◽  
Author(s):  
M.C. Oh ◽  
H. Yeom ◽  
Y. Jeon ◽  
B. Ahn

Abstract The influence of surface heat treatment using laser radiation on the fatigue strength and corresponding microstructural evolution of AISI 4140 alloy steel was investigated in this research. The AISI 4140 alloy steel was radiated by a diode laser to give surface temperatures in the range between 600 and 800°C, and subsequently underwent vibration peening. The fatigue behavior of surface-treated specimens was examined using a giga-cycle ultrasonic fatigue test, and it was compared with that of non-treated and only-peened specimens. Fatigue fractured surfaces and microstructural evolution with respect to the laser treatment temperatures were investigated using an optical microscope. Hardness distribution was measured using Vickers micro-hardness. Higher laser temperature resulted in higher fatigue strength, attributed to the phase transformation.


2016 ◽  
Vol 661 ◽  
pp. 105-114 ◽  
Author(s):  
Tatsuro Morita ◽  
Kenta Inoue ◽  
Xiaoteng Ding ◽  
Yoshitaka Usui ◽  
Masaru Ikenaga

2013 ◽  
Vol 5 ◽  
pp. 762890 ◽  
Author(s):  
Lin Wang ◽  
Dongsheng Qian ◽  
Jun Guo ◽  
Yan Pan

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