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Difference oxidation behaviors of Ni8Al and Ni25Cr coatings in air with water vapor at 650℃

发布时间:2025-09-18 点击次数:

影响因子: 1.2
发表刊物: Modern Physics Letters B
摘要: The oxidation behaviour of Ni8Al and Ni25Cr coatings produced by high velocity oxygen fuel spray (HVOF) which were deposited on Fe-based alloys (CB2) was investigated. We simulated the service environment of the steam generator unit, and put the samples in a thermostatic tube furnace at 650 in air with 20 wt.% water vapor for 1000 hours of cyclic oxidation. The formation mechanism are explained using SEM, XRD, and EDX. There were no spallations and obvious cracks in both coatings. Ni25Cr coating generated a better protection oxides scale than that scale on Ni8Al. The behavior and mechanism of the oxide scale formation had an important influence in coatings and we have discussed these phenomenons in the study.
论文类型: 期刊论文
卷号: 35
期号: 16
页面范围: 2150274
发表时间: 2021-10-01
收录刊物: SCI
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