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用声发射技术研究了Fe 2 3Cr 5Al 0 .2 1Ti合金在 110 0℃空气中氧化后的氧化膜破裂行为及离子注入1× 10 17Y+ /cm2 对氧化膜破裂行为的影响。实验结果表明 :随着氧化时间的增长 ,Fe 2 3Cr 5Al 0 .2 1Ti合金在冷却过程中氧化膜开始发生破裂的时间相同 ,表明氧化膜发生破裂的临界应力相同 ,但声发射累积计数增加 ,表明膜破裂程度加重。离子注入Y+ 后氧化膜发生破裂的时间延迟 ,表明膜发生破裂的临界应力增大 ,且声发射计数减少 ,表明膜破裂程度减小 ,氧化膜粘附性得到显著提高。
The effect of the oxide film rupture and the ion implantation of 1 × 10 17 Y + / cm 2 on the rupture behavior of the oxide film were studied by acoustic emission technique after oxidation of Fe 2 3Cr 5Al 0 .21Ti alloy in air at 110 ℃. The experimental results show that with the increase of oxidation time, the fracture time of the oxide film in Fe 2 3Cr 5Al 0 .21Ti alloy during cooling is the same, indicating that the critical stress of the oxide film rupture is the same but the acoustic emission cumulative count increases, Membrane rupture increased. Delayed rupture of the oxide film after ion implantation of Y + shows that the critical stress of film rupture increases and the acoustic emission count decreases, indicating that the degree of rupture of the film is reduced and the adhesion of the oxide film is significantly improved.