Results 71 to 80 of about 565 (210)

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  

Ferritic nitrocarburizing process development for minimization of distortion

open access: yes, 2009
Nitrocarburizing is a thermochemical diffusion process that has been proposed as an alternative to carbonitriding to improve the surface characteristics of automotive components without producing unacceptable part distortion.
Nan, Chunyan
core  

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

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

Modeling the kinetics of the nitriding and nitrocarburizing of iron

open access: yes, 1998
The growth kinetics of the iron-nitride compound layer during nitriding and nitrocarburizing of pure iron has been investigated for various temperatures and various combinations of imposed nitrogen and carbon activities.
Somers, Marcel A. J.   +1 more
core  

Enhancement of corrosion–mechanical wear resistance of metallic alloys by glow-discharge nitriding

open access: yesПроблеми трибології
The aim of this work is to provide a comprehensive analysis of hydrogen-free nitriding and nitrocarburizing processes in a glow discharge, to summarize the regularities of nitride and carbonitride layer formation on steels and titanium alloys, and to ...
M.S. Stechyshyn   +4 more
doaj   +1 more source

Plasma Electrolytic Nitrocarburizing of SAE 1045: Electro-chemical Slurry Erosion Wear Analysis [PDF]

open access: yesMaterials Research
Nitrocarburized coating by plasma electrolytic saturation, PEN/C coatings, have been proposed to increase the corrosion and wear resistance of steel by using a process of low-temperature hydrostatic plasma.
Leandro Câmara Noronha   +6 more
doaj   +1 more source

Microstructural and compositional Evolution of Compound Layers during Gaseous Nitrocarburizing

open access: yes, 2000
Compound layers developed at 848 K during gaseous nitrocarburizing of iron and iron-carbon specimens were investigated for several combinations of N and C activities imposed at the specimen surface by gas mixtures of NH3, N2, CO2 and CO.
Somers, Marcel A.J.   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy