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研究了表面涂覆和未涂覆ＣｅＯ２的２０ＣｒＮｉ４ＶＡ钢在空气中８００℃和１０００℃及控制氧分压下１０００℃的氧化动力学行为。钢在空气中氧化时表面主要生成Ｆｅ２Ｏ３和Ｆｅ３Ｏ４。表面涂覆ＣｅＯ２能降低钢的氧化速率，细化氧化物晶粒，并显著改善氧化皮的抗剥落性能。随氧分压降低，钢表面氧化物的种类和形貌发生变化。一种低氧分压条件下钢表面可形成单一ＦｅＯ膜。并发现在该种条件下，表面涂覆ＣｅＯ２增大了试样的氧化速率。认为是由于ＣｅＯ２成为氧化物形核中心从而能促进氧化物快速生长造成的。
The oxidation kinetics of surface-coated and uncoated 20CrNi4VA steels at 800 ℃ and 1000 ℃ in air and controlled oxygen partial pressures of 1000 ℃ were investigated. When the steel is oxidized in the air, the surface mainly produces Fe2O3 and Fe3O4. Surface coating CeO2 can reduce the oxidation rate of steel, grain refinement oxide, and significantly improve the scale of the anti-spalling performance. With the reduction of oxygen partial pressure, the type and morphology of oxide on steel surface change. Under a condition of low oxygen partial pressure, a single FeO film can be formed on the steel surface. It was found that under these conditions, the surface coating CeO2 increased the oxidation rate of the sample. It is believed that this is due to the fact that CeO2 acts as an oxide nucleation center and thus promotes the rapid growth of oxides.