Results 81 to 90 of about 1,267 (195)

From micro to nano scales -recent progress in the characterization of nitrided austenitic stainless steels [PDF]

open access: yes, 2015
In the frontier of materials science, understanding of materials has been in multiple scales from macro, micro, to atomic levels. This is attributed to the advanced instrumentations such as SEM, TEM, XPS, XRD, as well as several other spectroscopic and ...
Luo, Quanshun, Yang, Shicai
core   +1 more source

Experimental Researches Concerning the Influence of the Oxynitrocarburizing Thermochemical Treatment over the Structure and Corrosion Resistance of C40 Steel

open access: yesThe Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2009
The aim of the paper is to present the results of the experimental researches regarding the corrosion behaviour of C40 steel, thermochemical treated by oxidant nitrocarburizing at 570 °C. The thermochemical treatment was realized using an installation of
Nicolae BOICEA   +2 more
doaj  

Effect of vacuum oxy-nitrocarburizing on the microstructure of tool steels: an experimental and modeling study

open access: yesMATEC Web of Conferences, 2017
The thermochemical treatments of tool steels improve the performance of the components with respect to surface hardness, wear and tribological performance as well as corrosion resistance. Compared to the conventional gas ferritic nitrocarburizing process,
Nikolova Maria   +3 more
doaj   +1 more source

PENGARUH AGING DAN NITROKARBURISASI BAJA TAHAN KARAT PENGERASAN PRESIPITASI ASSAB TYPE CORRAX [PDF]

open access: yes
Baja tahan karat pengerasan prespitasi ASSAB type corrax hasil proses aging dan proses nitrokarburisasi dipelajari dalam peneliian ini. Temperatur yang digunakan untuk proses nitrokarburisasi yaitu 570ºC dengan rentang waktu 3 jam dan temperatur ...
Prasetio, Eko Hadi
core  

Wear of 16MnCrS5 steel surface layers in the pulsing contact loads [PDF]

open access: yes, 2023
Approaches to actualizing the use of modern alloy steels that are in demand in the Eurasian technological space are proposed. According to the criterion of resistance to contact fatigue, quantitative indicators of wear of the surfacehardened layers of ...
Kuis, D.   +5 more
core   +1 more source

CHARACTERIZATION OF NITROCARBURIZED COATING BY PLASMA ELECTROLYTIC SATURATION

open access: yesActa Metallurgica Slovaca, 2018
Plasma electrolytic saturation (PES) is an atmospheric pressure plasma deposition which is used for fabrication of nanostructural coatings. This process starts with the appearance of some sparks on the surface and finally by the formation of plasma ...
Seyyed Mohammad Noori   +1 more
doaj  

DOUBLE CHEMICAL-THERMAL TREATMENT GEARS FROM STEAL VKS-5

open access: yesАвіаційно-космічна техніка та технологія, 2018
The process of the double chemical-thermal treatment (DCTT) a gear made of heat-resistant steel VKS-5 is quite common and makes it possible to obtain secondary hardness.
Андрей Борисович Единович   +2 more
doaj   +1 more source

Abrasion Resistance of Surface-Modified Steels Used for Artillery Weapon Barrels [PDF]

open access: yes, 2017
A barrel is one of the most tribologically and thermally loaded parts of artillery weapons. The influence of the salt bath nitrocarburizing and hard-chrome plating of three steels used for artillery barrels on their abrasion resistance is studied in this
Darko Landek, Mirko Jakopčić
core   +2 more sources

Effect of QPQ Technology on Mechanical Properties and Corrosion Resistance of Petroleum Tubes

open access: yesChemical Engineering Transactions, 2017
Quench polish quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. In recent years, QPQ technology has attracted the attention of other industries, such as piston rod, oil and other industries.
Gehong Liu   +5 more
doaj   +1 more source

Optimisation de la nitruration gazeuse des aciers par une modélisation multiphysique [PDF]

open access: yes, 2016
La nitruration gazeuse est un traitement thermochimique contrôlée par la température, le temps et le potentiel azote superficiel qui influencent de façon notable les propriétés méca- niques (dureté, contraintes résiduelles) et la durée de vie des pièces ...
BARRALLIER, Laurent   +2 more
core   +1 more source

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