Results 191 to 200 of about 439 (213)
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Heat Treating Conference, 2015
Abstract For more than 20 years now Low Pressure Vacuum Carburizing (LPC) has taken over several industries as the main carburizing choice. These industries take advantage of LPC’s clean environment, versatility, “just in time” processing, along with possible distortion control that comes with gas quenching capabilities to process ...
Vincent Lelong, Amberlee Welch
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Abstract For more than 20 years now Low Pressure Vacuum Carburizing (LPC) has taken over several industries as the main carburizing choice. These industries take advantage of LPC’s clean environment, versatility, “just in time” processing, along with possible distortion control that comes with gas quenching capabilities to process ...
Vincent Lelong, Amberlee Welch
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Advancing Low-Pressure Carburizing Through Simulation
AM&P Technical ArticlesAbstract This case study demonstrates how using software to design and optimize a low-pressure carburization (LPC) recipe saves time and material, and increases confidence in final part performance. The case study involves designing an LPC recipe for a low-carbon alloy steel spur gear geometry.
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Vacuum Heat Treatment and Low Pressure Carburizing of APS NiCr Coatings
International Thermal Spray Conference, 1998Abstract Duplex processes consist in applying a treatment, like annealing, carburizing, or nitriding for example, to a plasma sprayed coating in order to improve particular physical characteristics of this coating. Trials of vacuum heat treatment or low pressure carburizing have been performed on APS NiCr coatings, previously sprayed on ...
C. Gaudin +4 more
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Carburization of tungsten and tantalum filaments during low-pressure diamond deposition
Surface and Coatings Technology, 1991Abstract The carburization behavior of tungsten and tantalum filaments in a CH 4 -H 2 gas mixture during hot-filament low-pressure diamond deposition was investigated at different filament temperatures, methane concentrations and gas pressures. Tungsten filaments were fully converted to tungsten carbide-sub-carbide (WC-W 2 C) at 2000 °C in 24 h ...
S. Okoli, R. Haubner, B. Lux
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Development of New Alloy Steel for High-Temperature Low Pressure Carburizing
SAE Technical Paper Series, 2002<div class="htmlview paragraph">Gas carburizing is a surface hardening method that is used for automobile steel parts such as gears. The conventional gas carburizing(at 1223K) takes longer time. Shortening the carburizing time will contribute greatly to the energy saving and CO<sub>2</sub> reduction of parts production.</div> ...
Yoshimasa Ureshino +3 more
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Microstructure, microhardness and impact toughness of low pressure carburized PM steels
2011The effect of low pressure carburizing (LPC) on two low alloyed sintered steels processed according to differentroutes to obtain different amounts of open porosity was studied. In presence of an open porosity,overcarburizing promotes the precipitation of grain boundary carbides in the Cr steel, and the formation ofretained austenite in the Cr free one.
E. Santuliana +3 more
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Multi-field coupling simulation of vacuum carburizing and high-pressure gas quenching process
Heat Treatment and Surface Engineering, 2022Jianfeng Gu, Zhenghong Guo
exaly