含硅、磷钢在2%残氧气氛下的高温氧化行为研究  

Study on high temperature oxidation behavior of contained Si and P steels under 2% O_2 partial pressure atmosphere

作　　者：王俊广 陈雨来[1] 王晓东[2] 周旬[2] 高小丽 李瑞[2] 

机构地区：[1]北京科技大学高效轧制国家工程研究中心,北京100083 [2]首钢京唐钢铁联合有限责任公司,河北唐山063000 [3]首钢集团有限公司技术研究院,北京100043

出　　处：《轧钢》2017年第5期16-22,共7页Steel Rolling

摘　　要：通过热重试验测量了Si、P含量不同的3种钢在2%残氧气氛下的氧化动力学;研究了Si、P含量对不同钢种氧化的影响。通过高温氧化动力学试验,发现3种钢的氧化动力学符合抛物线规律,计算得到3种钢的氧化激活能分别为90.04、91.87、239.95kJ/mol。在800~1 100℃的氧化过程中,氧化速率随着S、P含量的增加而减小;当温度上升至1 100℃以上,氧化速率随着Si含量的增加而增大,当钢中Si的质量分数超过0.67%时,影响尤其显著。The influence of Si and P contents on the oxidation rate of three steels through the TG measuring the oxidation kinetics data under 2% O2 partial pressure atmosphere were studied.According to the oxidation mass gain curve,the oxidation curves of the three steels could be satisfied the parabolic relationship.With the constents of Si and P increasing,the activation energy of three tested steels was respectively 90.04 kJ/mol,91.87 kJ/mol and 239.95 kJ/mol.During the oxidation in the temperature range of 800-1 100℃,with the amount of Si and P both increasing,the oxidation rate was slowed down.During the oxidation in the temperature range of 1 200-1 250℃,with the amount of Si increasing,the oxidation rate was fastened.Besides,when the Si mass content was over 0.67%,the Si element had an obvious effect on the oxidation rate.

关 键 词：氧化激活能 氧化动力学 含Si、P钢 低氧浓度 

分 类 号：TG142.1[一般工业技术—材料科学与工程] TG335[金属学及工艺—金属材料]