Results 11 to 20 of about 320,179 (263)

Influence of Oxygen Admixture on Plasma Nitrocarburizing Process and Monitoring of an Active Screen Plasma Treatment

open access: yesApplied Sciences, 2021
The effect of a controlled oxygen admixture to a plasma nitrocarburizing process using active screen technology and an active screen made of carbon was investigated to control the carburizing potential within the plasma-assisted process. Laser absorption
Jan Böcker   +6 more
doaj   +1 more source

An Investigation into the Wear Behavior of Martensitically Transformed Nitrided Layers

open access: yesLubricants, 2023
To improve the service behavior of gears, surface heat treatments such as nitriding or induction hardening can be performed. Since these processes are limited in their achievable maximum hardness or depth of hardness, a combination treatment could allow ...
Stefanie Hoja   +3 more
doaj   +1 more source

Sliding wear behavior of duplex coatings with different plasma nitride layers and a Cr‐Al‐Ti‐B‐N coating

open access: yesEngineering Reports, 2022
The dry sliding wear behavior of AISI D2 tool steel is investigated under different heat treatment states in hardened, plasma nitrided, and duplex layer conditions.
Tom Weinhold   +3 more
doaj   +1 more source

Titanium-modified plasma nitriding layer and enhanced properties for 42CrMo steel

open access: yesJournal of Materials Research and Technology, 2022
In order to obtain a nitriding layer with thicker ductile diffusion layer and thinner brittle compound layer, plasma nitriding with titanium addition was carried out at 540 °C for 4 h for 42CrMo steel, the characteristic of titanium modified nitriding ...
Jiqiang Wu   +3 more
doaj   +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

EFFECT OF TIME ON THE COMPOUND LAYER FORMED DURING SALT BATH NITRIDING OF AISI 4140 STEEL

open access: yesActa Metallurgica Slovaca, 2018
This research was carried out to study the effect of time on the compound layer of AISI 4140 steel in salt bath nitriding. The nitriding process were implemented on AISI 4140 steel in salt bath component for different times (from 1 h to 10 h) at 580 °C ...
Elhadj Ghelloudj   +2 more
doaj   +1 more source

Carburizing of Ti–6Al–4V alloy: Structure, growth mechanism and wear performance

open access: yesJournal of Materials Research and Technology, 2023
Ti–6Al–4V alloy was pack carburized at temperatures of 950–1100 °C within a holding time range of 1–10 h. The structures and constituent phases of carburized layers were analyzed by optical microscope, scanning electron microscope (SEM) and X-ray ...
He Zhang   +3 more
doaj   +1 more source

CALCULATION OF ELECTRONIC STRUCTURE OF 2D NaAu INTERMETALLIC LAYERS

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The calculation of the density of states of various thicknesses of the 2D-layers of the intermetallic compound has been carried out. 2D-layers of intermetallic compound NaAu are simulated by supercells NaAu (111) 2×2×2.
Yu.A. Kuznetsov, M.N. Lapushkin
doaj   +1 more source

Thin-Layer Chromatography of Guanidino Compounds [PDF]

open access: yesClinical Chemistry and Laboratory Medicine, 1977
Twelve guanidino compounds including, among others, glycocyamine, creatine, creatinine, arginine, guanidinosuccinic acid were submitted to thin-layer chromatography on plates precoated with silica gel or cellulose, respectively. Optimal resolution was obtained by two-dimensional chromatography on cellulose layers when the two solvent systems iso ...
Völkl, A., Berlet, H. H.
openaire   +2 more sources

Electron-stimulated desorption of rubidium atoms adsorbed on the surface of gold-rubidium intermetallide

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
The calculation of the density of states of various thicknesses of the 2D-layers of the intermetallic compound RbAu has been carried out. 2D-layers of intermetallic compound RbAu are simulated by supercells RbAu (111) 2×2×2.
Yu.A. Kuznetsov, M.N. Lapushkin
doaj   +1 more source

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