Plasma duplex treatment influence on the tribological properties of the UNS S32760 stainless steel

Almeida, P.R.Q. de; Serra, Petteson Linniker Carvalho; Danelon, Miguel Rubira; Rossino, Luciana Sgarbi; Costa, Thércio Henrique de Carvalho; Feitor, Michelle Cequeira; Menezes, A.S. de; Nascimento, R. M.; Sousa, R.M.; Marciano, Fernanda R.

doi:10.1016/j.surfcoat.2021.127774

Cited by 5 publications

(3 citation statements)

References 43 publications

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“…The main function of the exhaust system is to eliminate the gasses produced after the combustion of the cylinders, that is, to direct the properly filtered gasses out of the vehicle and prevent toxic gasses from entering the interior of the vehicle. Other functions include reducing noise pollution and maintaining good vehicle performance 1,3,4,[12][13][14][15][16][17][18] . Figure 1 shows an example of a car exhaust system.…”

Section: Introductionmentioning

confidence: 99%

“…As mentioned earlier, different types of steels and cast irons can be used in car exhaust systems. Although low-carbon steels have low corrosion and wear resistance, they have high toughness, ductility, weldability, and machinability, making them widely advantageous due to their low production cost and market availability, although some properties limit their use in some automotive component manufacturing processes 7,10,15,[37][38][39][40][41][42] .…”

Section: Introductionmentioning

confidence: 99%

“…Conventional plasma nitriding has a limitation when components with different shapes or surface-to-mass ratios are subjected to varying degrees of ion bombardment, resulting in inhomogeneous hardness and depth of nitrogen diffusion after plasma nitriding. These limitations have been reduced with the development of new techniques, postdischarge nitriding, plasma ion implantation, and active screen nitriding 6,15,24,39,[61][62][63][64] .…”

Section: Introductionmentioning

confidence: 99%

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Deposition of Ti-Based Thin Films on AISI 1020 Steel Substrates Using the Cathodic Cage Plasma Deposition Technique

Silva,

Cardoso,

Gontijo

et al. 2023

Mat. Res.

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The automotive industry is one of the largest industrial segments in the world market. The exhaust system of motor vehicles is responsible for the emission and treatment of toxic gasses released by the engine. In this sense, the application of titanium on an AISI 1020 steel substrate was carried out by plasma deposition using a cathode cage. The aim of this research was to evaluate the application of this material in the exhaust system of motor vehicles. The samples were characterized by scanning electron microscopy (SEM), confocal microscopy (CM), microhardness tests and corrosion resistance tests. The samples exhibited a thin film with higher titanium content and hardness than the uncoated sample. The corrosion potential also increased and the current density was lower than the uncoated sample. The conclusion is that the deposition of thin titanium films on AISI 1020 steel with CCPD has the potential to produce thin films.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Deposition of Ti-Based Thin Films on AISI 1020 Steel Substrates Using the Cathodic Cage Plasma Deposition Technique

Silva,

Cardoso,

Gontijo

et al. 2023

Mat. Res.

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Tribological Behavior of SINTER30 Steel Subjected to Duplex Treatment

Macedo

Sousa

Nogueira

et al. 2023

steel research int.

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Plasma nitriding has been extensively used to improve materials’ surface and mechanical properties using conventional plasma techniques. However, this process generally results in a nonuniformity of the properties. In the cathodic cage plasma nitriding (CCPN), the plasma is active only on the surface of the cathodic cage, eliminating inherent defects of conventional plasma nitriding. Herein, a duplex treatment, CCPN and TiN deposition, is used on SINTER30 tool steel for the first time. Vickers microhardness tests, X‐ray diffractometry, Raman scattering spectroscopy, and scratching tests characterize the samples. The results show that TiN post‐coating attains higher surface hardness. All the groups increase their microhardness properties when compared with nontreated substrates. The prior treatment of plasma nitriding assists hardening of the substrate surface. The best condition is obtained when the sample is placed inside the titanium cage and positions directly on the sample port, with simultaneous duplex treatment. When the substrate passes through this simultaneous duplex process, peaks corresponding to Fe3N and TiN are observed at Raman spectra. Suitable TiN layers improve the film adhesion, which is correlated to the system's load‐bearing capacity.

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Influence of Time and Temperature of Plasma Nitriding on the Wear Resistance of Ni–Cr–Mo‐Based Films Deposited by AISI 904L Cathodic Cage on SAE 6160 Steel

Medeiros Filho,

Libório,

Coan

et al. 2024

steel research int.

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This work aims to evaluate the effects on surface hardness and wear resistance of plasma nitriding treatment on SAE 6160 steel that exhibits cathodic cage deposition of AISI 904L, with high nickel content and medium chromium content, varying the treatment time and temperature. The deposition temperature is 450 °C, and after deposition, the samples are nitrided at 450 and 500 °C for 2 and 4 h. All samples are characterized by X‐Ray diffraction, Vickers microhardness, optical microscopy, and wear resistance. The results show that for longer nitriding times and temperatures, there is the formation of the S phase, expanded austenite, and the precipitation of CrN, resulting in lower wear resistance among the nitrided samples, but considering that the resistance of all samples is higher to AISI 6160 samples. All samples show high surface hardness and a diffusion layer between 69 and 170 μm; the only deposited sample shows good resistance to wear due to the deposition efficiency of films based on Ni–Cr–Mo.

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Plasma duplex treatment influence on the tribological properties of the UNS S32760 stainless steel

Cited by 5 publications

References 43 publications

Deposition of Ti-Based Thin Films on AISI 1020 Steel Substrates Using the Cathodic Cage Plasma Deposition Technique

Deposition of Ti-Based Thin Films on AISI 1020 Steel Substrates Using the Cathodic Cage Plasma Deposition Technique

Tribological Behavior of SINTER30 Steel Subjected to Duplex Treatment

Influence of Time and Temperature of Plasma Nitriding on the Wear Resistance of Ni–Cr–Mo‐Based Films Deposited by AISI 904L Cathodic Cage on SAE 6160 Steel

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