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Metallurgical response of an AISI 4140 steel to different plasma nitriding gas mixtures [PDF]
Materials Research, 2013 Plasma nitriding is a surface modification process that uses glow discharge to diffuse nitrogen atoms into the metallic matrix of different materials. Among the many possible parameters of the process, the gas mixture composition plays an important role,
Adão Felipe Oliveira Skonieski +3 more
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Journal of Materials Research and Technology, 2023 The present work aimed to create a hard surface on a titanium surface via plasma nitriding to improve microhardness and wear properties of the as-cast (α-CP-Ti (CP–Ti), α+β-Ti6Al4V (Ti–Al–4V), and β-Ti-33Nb–33Zr (TNZ-33) samples.
Mariana Correa Rossi +4 more
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HARDNESS OF NITRIDED LAYERS TREATED BY PLASMA NITRIDING
Acta Polytechnica CTU Proceedings, 2020 Stainless steels, particularly the austenitic stainless grades are widely used in many industries due to good corrosion resistance, but very poor mechanical properties as surface hardness and wear resistance limit its possible use. Plasma nitriding is one of the few ways to increase the surface hardness of these steels, even though this will affect its
Zdeněk Joska +4 more
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Surface modification of titanium by plasma nitriding
Materials Research, 2003 A systematic investigation was undertaken on commercially pure titanium submitted to plasma nitriding. Thirteen different sets of operational parameters (nitriding time, sample temperature and plasma atmosphere) were used. Surface analyses were performed
Myriam Pereira Kapczinski +3 more
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Changes of Structure and Physical-Mechanical Properties in Alloy Steels Thermochemically Treated by Plasma Nitriding [PDF]
MATEC Web of Conferences, 2021 Plasma nitriding is a method of surface modification using a glow discharge technology to introduce nitrogen into the surface of a metal, which subsequently diffuses into the material.
Ciofu Florin, Bibu Marius
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Surface Treatment of Tool Steel in Controlled Plasma Nitriding Environment
Tribology Online, 2008 Nitriding of tool steel was investigated in a controlled electron beam excited nitrogen plasma environment. The samples were nitrided in two distinct regions, a region with high plasma density and a region with low plasma density called the irradiated ...
Yasuharu Yoshikawa +2 more
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Plasma-Nitriding Properties of CoCrFeMnNi High-Entropy Alloys Produced by Spark Plasma Sintering
Metals, 2020 High-entropy alloys (HEAs) were fabricated by powder metallurgy using gas-atomized powder and spark plasma sintering (SPS) followed by surface modification (plasma nitriding) of the sintered sample.
Takato Karimoto, Akio Nishimoto
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MATEC Web of Conferences, 2014 This paper present mathematical model which developed to predict the nitrided layer thickness (case depth) of gas nitrided and plasma nitrided austenitic stainless steel according to Fick’s first law for pure iron by adapting and manipulating the ...
Triwiyanto A. +4 more
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PLASMA DEPOSITION OF SILICON NITRIDE [PDF]
Le Journal de Physique IV, 1991 This paper reports on the preparation and characterization of thin films of silicon nitride deposited on heated silicon substrates from Si (CH3)4-NH3-H2 mixtures activated at room temperature by an a.c. discharge at low frequency. The films were deposited at 800°C.
Fakih, C. +3 more
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Surface modification of austenitic steel by various glow-discharge nitriding methods
Medžiagotyra, 2015 Recent years have seen intensive research on modifying glow-discharge nitriding processes. One of the most commonly used glow-discharge methods includes cathodic potential nitriding (conventional method), and active screen plasma nitriding. Each of these
Tomasz Borowski +4 more
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