Results 21 to 30 of about 15,310 (342)

Metallurgical response of an AISI 4140 steel to different plasma nitriding gas mixtures [PDF]

open access: yesMaterials 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
doaj   +3 more sources

Surface modification of titanium by plasma nitriding

open access: yesMaterials 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
doaj   +1 more source

A detailed analysis of the structural, morphological characteristics and micro-abrasive wear behavior of nitrided layer produced in α (CP–Ti), α+β (Ti–6Al–4V), and β (TNZ33) type Ti alloys

open access: yesJournal 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
doaj   +1 more source

Changes of Structure and Physical-Mechanical Properties in Alloy Steels Thermochemically Treated by Plasma Nitriding [PDF]

open access: yesMATEC 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
doaj   +1 more source

Plasma and nitrides: application to the nitriding of titanium [PDF]

open access: yesPure and Applied Chemistry, 1990
Abstract
A. Gicquel, N. Laidani, P. Saillard
openaire   +1 more source

Surface Treatment of Tool Steel in Controlled Plasma Nitriding Environment

open access: yesTribology 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
doaj   +1 more source

Plasma-Nitriding Properties of CoCrFeMnNi High-Entropy Alloys Produced by Spark Plasma Sintering

open access: yesMetals, 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
doaj   +1 more source

HARDNESS OF NITRIDED LAYERS TREATED BY PLASMA NITRIDING

open access: yesActa 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
openaire   +3 more sources

Effect of Surface Deposits on Nitriding Layer Formation of Active Screen Plasma Nitriding [PDF]

open access: yes, 2016
Austenitic stainless steel SUS 316L was nitrided by active-screen plasma nitriding (ASPN) to investigate the effect of surface deposits from the screen on the nitriding layer formation.
Fukube Takahiro   +5 more
core   +2 more sources

Mathematical Modelling of Nitride Layer Growth of Low Temperature Gas and Plasma Nitriding of AISI 316L

open access: yesMATEC 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
doaj   +1 more source

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