Results 11 to 20 of about 525 (262)

Vacuum gas carburizing fate of hydrocarbons

open access: yes, 2008
This work focuses on gaseous reactive flows in ideal and non-ideal reactors. The objective of this research is the development of models for the numerical simulation of homogeneous reactive flows under vacuum carburizing conditions of steel with propane ...
Khan, Rafi Ullah
core   +7 more sources

Acetylene Flow Rate as a Crucial Parameter of Vacuum Carburizing Process of Modern Tool Steels

open access: yesArchives of Metallurgy and Materials, 2016
Carburizing is one of the most popular and wide used thermo-chemical treatment methods of surface modification of tool steels. It is a process based on carbon diffusive enrichment of the surface material and is applied for elements that are supposed to ...
Rokicki P., Dychton K.
doaj   +2 more sources

Influence of Alloying Elements on the Carburizing Behavior in Acetylene Atmosphere

open access: yesMetals, 2023
Three steel types (AISI 1020, AISI 8620, AISI 4120) with similar carbon content and different Cr content were used as test specimens to closely examine the effect of alloying elements for carbon penetration and diffusion on the steel surface during ...
Gi-Hoon Kwon   +3 more
doaj   +2 more sources

Mathematical Modeling of Carbon Flux Parameters for Low-Pressure Vacuum Carburizing with Medium-High Alloy Steel

open access: yesCoatings, 2020
Low-pressure vacuum carburizing adopts a pulse process mode to improve the carburizing efficiency and reduces gas and energy consumption. Carbon flux is the key to accurately control the time of strong infiltration and diffusion in each pulse.
Yong Tian, Xiaoxue An, Wang Zhaodong
exaly   +2 more sources

The Effect of Vacuum Carburizing on the Mechanical and Wear Properties of Fe–C–Cu Composite Materials Produced via Powder Metallurgy

open access: yesArabian Journal for Science and Engineering, 2022
This study investigated the effects of the direct vacuum carburizing process on sinterability, mechanical, and wear properties applied to the composites produced via the powder metallurgy (PM) method and containing of Fe-C-Cu.
Ozer Pamuk, Yavuz Kaplan, Engin Tan
exaly   +2 more sources

Influence of Chemical Composition on Structure and Mechanical Properties of Vacuum-Carburized Low-Alloy Steels. [PDF]

open access: yesMaterials (Basel)
This study presents research results concerning the vacuum carburizing of four steel grades, specifically conforming to European standards 1.7243, 1.6587, 1.5920, and 1.3532.
Kochmański P   +12 more
europepmc   +2 more sources

Catalytic Treatment of Vacuum Carburizing Off Gas

open access: yesChemical Engineering & Technology, 2015
The aim of this investigation was to find a suitable procedure for the treatment of higher polycyclic aromatic hydrocarbons, produced during vacuum carburizing of steel.
Reimert, R.   +3 more
core   +3 more sources

Influence of the temperature of vacuum carburizing on the thickness of the carburized layer and properties of steel parts [PDF]

open access: yesMetal Science and Heat Treatment, 2020
Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 4, pp. 37 – 43, April, 2020.The properties of steel parts after carburizing in low-pressure acetylene are studied.
Heintzberger, Paul Johan
core   +3 more sources

Mechanism of the Microstructural Evolution of 18Cr2Ni4WA Steel during Vacuum Low-Pressure Carburizing Heat Treatment and Its Effect on Case Hardness. [PDF]

open access: yesMaterials (Basel), 2020
In this study, vacuum low-pressure carburizing heat treatments were carried out on 18Cr2Ni4WA case-carburized alloy steel. The evolution and phase transformation mechanism of the microstructure of the carburized layer during low-temperature tempering and
Wang B   +6 more
europepmc   +2 more sources

HIGH-TEMPERATURE VACUUM CEMENTATION – THE RESERVE TO REDUCE THE ENERGY INTENSITY OF MANUFACTURE AND IMPROVE THE QUALITY OF TRANSMISSIONS GEARWHEELS OF HIGH-ENERGY MACHINES

open access: yesЛитьë и металлургия, 2016
Results of research of influence of high-temperature vacuum chemical heat treatment on the amount of grain structural steels are presented. The efficiency of hereditary fine-grained steel for high temperature vacuum carburizing are shown.
A. A. Shipko   +3 more
doaj   +1 more source

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