Rare Earth Accelerated Co-Permeation and High Carbon Potential Carburization

This paper investigated the accelerated co-permeation effect of rare earth accelerant under different carbon potential in the well type furnace,get through the experiment,need to carry on appropriate adjustment to carburization carbon potential while adopting the rare earth accelerant.Test prove adopt higher carbon potential,in strong carburisng periode of carbon potential Pc =1.25%～1.30%could fine full play rare earth efficiency of accelerant and can receive fine microstructure.Discussed the dependence befween carbon potential and rare earth cccelertion and influence of high carbon potenfial on mechanical properties of work piece.