论文部分内容阅读
利用热重法对Fe-1Cr和Fe-0Cr钢进行恒温氧化动力学研究,计算出这两个钢种的激活能。使用扫描电镜对Fe-1Cr钢氧化后的表面形貌进行观察。结果表明:在120 min高温氧化后,Fe-1Cr的氧化增重要小于Fe-0Cr钢,且Fe-0Cr比Fe-1Cr更易被氧化。在700℃时Fe-1Cr钢氧化表面产物以Fe_3O_4为主,随温度升高,Fe_3O_4表面有Fe_2O_3生成。
The thermo-gravimetric method was used to study the kinetics of isothermal oxidation kinetics of Fe-1Cr and Fe-0Cr steels. The activation energies of these two steels were calculated. The surface morphology of Fe-1Cr steel after oxidation was observed by scanning electron microscopy. The results show that after 120 minutes of high temperature oxidation, the weight gain of Fe-1Cr is smaller than that of Fe-0Cr steel, and Fe-0Cr is more easily oxidized than Fe-1Cr. At 700 ℃, the oxidation products of Fe-1Cr steel are mainly Fe_3O_4. With the increase of temperature, Fe_3O_4 has Fe_2O_3 formed on the surface.