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采用膏剂法在890，920和950℃对工业纯铁进行稀土硼铝共渗及硼铝共渗，考察了稀土在各温度条件下对渗层生长动力学的影响。根据试验结果，通过计算机拟合给出了渗层生长动学曲线并建立了方程。结果表明，稀土在890和920℃作用较明显，曲线拟合度达99．0％以上，可用于渗层的预报和控制。
Paste method at 890,920 and 950 ℃ for industrial pure iron boron and aluminum co-infiltration and boron-aluminum infiltration, investigated the rare earths in the temperature of the infiltration layer growth kinetics. According to the test results, the dynamic growth curve of the layering is given and the equation established. The results show that the effect of rare earth on 890 and 920 ℃ is obvious, and the curve fitting degree is above 99.0%, which can be used for the prediction and control of the seepage layer.