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本文研究了在不同离子渗氮条件下,纯Fe,45,40Cr,42C1Mo和38CrMoAl钢等五种材料离子渗氮层长大动力学的数学模式,在此基础上,利用仿型积分法,推导出离子渗氮层的氮浓度分布函数: C_ε=C_(min)~ε+P_4/ξ_(10)(ξ_1-x)+P_5/ξ_(10)~2(ξ_1-x)~2, C_γ′=C_(min)~γ′+P_1/ξ_(21)(ξ_2-x)+P_2/ξ_(21)~2(ξ_2-x)~2, C_α=C_(min)~α+C_(33)/ξ_(33)~3(ξ_3-x)~3利用上面数学模式,进行计算机仿真,与实验结果符合良好.
In this paper, under different conditions of ion nitriding, pure Fe, 45,40Cr, 42C1Mo and 38CrMoAl five materials ion nitriding layer mathematic model of growth kinetics, on this basis, the use of copy integration method, derived The distribution function of nitrogen concentration in the ion nitriding layer is as follows: C_ε = C_min - ε + P_4 / ξ_ (10) (ξ_1-x) + P_5 / ξ_ (10) = C_ (min) ~ P + / P_1 / ξ_ (21) (ξ_2-x) + P_2 / ξ_ (21) ~ 2 (ξ_2-x) / ξ_ (33) ~ 3 (ξ_3-x) ~ 3 Using the above mathematical model, the computer simulation is carried out, which is in good agreement with the experimental results.