Results 1 to 10 of about 489 (145)

Calculation of the Mixture Flow in a Low-Pressure Carburizing Process [PDF]

open access: yesMetals, 2019
The right selection of carburizing gas flow rates in the low-pressure carburization process is a key factor in terms of its efficiency. However, a correct calculation of the amount of carburizing gas required for uniform carburization of parts, taking into account the process temperature and batch size, is still problematic.
Emilia Wołowiec-Korecka   +2 more
exaly   +4 more sources

Modeling and Simulation of Vacuum Low Pressure Carburizing Process in Gear Steel [PDF]

open access: yesCoatings, 2021
A combination of simulation and experimental approaches to optimize the vacuum carburizing process is necessary to replace the costly experimental trial-and-error method in time and resources. In order to accurately predict the microstructure evolution and mechanical properties of the vacuum carburizing process, a multi-field multi-scale coupled model ...
Jingyu Guo, Xiaohu Deng, Leyu Zhou
exaly   +3 more sources

Ta2C precipitation after low pressure carburizing of tantalum [PDF]

open access: yesMaterials Chemistry and Physics, 2022
Low pressure carburizing cycles were carried out on tantalum samples. A Ta2C precipitates layer is present underthe TaC and Ta2C surface layers. As the TaC and Ta2C layers, the Ta2C precipitates layer (TPL) grows by carbondiffusion in tantalum matrix.
Dominique Cotton   +3 more
openaire   +4 more sources

Manganese Volatilization and Its Influence on Low-Pressure Carburizing Process Effects. [PDF]

open access: yesMaterials (Basel)
The presented research quantitatively characterizes the depth and fraction of Mn volatilization under LPC conditions for the first time and its influence on surface layer properties. It has been proven that this phenomenon increases with holding time at carburizing temperature and that the intensity of this phenomenon can be limited by using step ...
Atraszkiewicz R, Zgórniak P.
europepmc   +4 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

Study on the Process of Vacuum Low Pressure Carburizing and High Pressure Gas Quenching for Carburizing Steels

open access: yesJournal of Physics: Conference Series, 2020
Abstract The vacuum low pressure carburizing and high pressure gas quenching processes of 20CrMo, 20CrMnTi and 20Cr2Ni4 with acetylene as carburizing medium were investigated. The results show that the carburizing and diffusion time significantly affected the carburizing performance. Carburized with the process of C2H2 flow rate 10L/min,
Huizhen Wang   +4 more
openaire   +1 more source

Advances in Low Pressure Carburizing and High-Pressure Gas Quenching

open access: yesHeat Treating Conference, 2021
Abstract Low pressure carburizing (LPC) in combination with high-pressure gas quenching (HPGQ) is a robust and versatile case hardening technology. This paper shows how recent advancements in LPC and HPGQ are being employed in the heat treatment of automotive and aerospace components.
openaire   +1 more source

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