75Cr1钢加热炉内表面脱碳分析

发布时间：2018-03-21 04:06

  本文选题：Cr　切入点：脱碳　出处：《钢铁研究学报》2017年02期 　论文类型：期刊论文

【摘要】：在实验室模拟现场加热炉加热过程,在CO_2、O_2、H_2O、N_2体积分数分别为16.5%、0.8%、13%、69.7%的混合气氛下对75Cr1钢加热保温。通过正交实验研究了加热温度(975、1 050、1 125、1 200℃)和保温时间(10、20、30、40min)对75Cr1钢脱碳的影响规律。并与菲克第二定律的计算结果进行了对比。实验结果表明:脱碳层深度随着加热温度和保温时间的增加而增加,并且当温度为1 200℃时,增幅明显变大;975℃时的实测值接近理论值,1 050、1 125、1 200℃时,实测值远小于理论值;扩散系数修正后计算值与实测值基本保持一致。
[Abstract]:In the laboratory to simulate the heating process of the field heating furnace, In this paper, the effect of heat preservation on 75Cr1 steel was studied by orthogonal experiment in a mixed atmosphere of 16.5% volume fraction of CO2O2H2OH2ON2 and 0.8% 1369.7% respectively. The effect of heating temperature and holding time 10203040min on the decarbonization of 75Cr1 steel was studied by orthogonal experiment. The experimental results show that the depth of decarburized layer increases with the increase of heating temperature and holding time. And when the temperature is 1 200 鈩，

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