摘要
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 cracking and spalling behavior of oxide scale formed on Fe 23Cr 5Al 0.21Ti alloy at 1 100 ℃ in air and the effect of 1×10 17 Y +/cm 2 implantation were studied using acoustic emission technique (AE). The results show that, with increasing oxidation time, the initial time when oxide scale suffered from cracking and spalling is same, indicating that the critical cracking stress of oxide scale on Fe 23Cr 5Al 0.21Ti is not changed, but the cumulative AE events increased, referring that cracking and spalling is more serious. The initial time of oxide scale suffered from cracking and spalling is delayed and the cumulative AE events is decreased by yttrium ion implantation, indicating that the critical cracking stress of oxide scale is increased and scale is more resistant to fracture. [
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2000年第3期326-329,共4页
The Chinese Journal of Nonferrous Metals
