TY - JOUR ID - 5061 TI - Thermodynamic Simulation of Gas Carburizing of Steels JO - International Journal of Iron & Steel Society of Iran JA - IJISSI LA - en SN - 2981-0388 AU - Modarresi, S. M. H. AU - Kashefi, M. AU - Vahdati Khaki, J. AD - Department of Metallurgy and Materials Science Engineering, Ferdowsi University of Mashhad, Mashhad Y1 - 2008 PY - 2008 VL - 5 IS - 2 SP - 8 EP - 13 KW - Simulation KW - Gas carburizing KW - Carbon percentage KW - Air-to-fuel ratio KW - Relative humidity DO - N2 -       Simulation of metallurgical processes has been the subject of intense research due to the reduced number of experiments required for controlling the process as well as time and energy savings it allows. In gas carburizing of steel parts, the amount of carbon at the surface of carburized parts is the most important specification of the process in terms of achieving the desired metallurgical properties. In the present research, the gaseous reactions in an endothermic gas generator have been simulated using MATLAB software where the equilibrium surface carbon percentage was obtained by solving the equilibrium constant equations. The effects such variables as air-to-fuel ratio in the endothermic gas generator, carburizing temperature, pressure inside the furnace, relative humidity, and ambient temperature have been investigated. Besides, working conditions of the furnace have been investigated to obtain the desired carbon potential. Finally, the results of the simulation have been compared with experimental results obtained from a gas carburizing furnace UR - https://journal.issiran.com/article_5061.html L1 - https://journal.issiran.com/article_5061_4106fa81308b6593af0c45a0743cb58b.pdf ER -