摘要
采用无机盐料浆法在镍基高温合金表面制备了Al–Si渗层。依据GB/T1330391《钢的抗高温氧化性能测定方法》标准,用静态增重的试验方法,对制备了Al–Si渗层和未制备渗层的镍基高温合金进行了1000℃恒温抗氧化性能试验。利用带能谱分析的扫描电镜(SEM/EDX)进行了渗层表面形貌观察和成分测试并用XRD–6000对氧化后的渗层进行相组成分析。研究结果表明:制备了AlSi渗层的镍基高温合金在高温氧化过程中,渗层表面已转变成致密完整的αAl2O3氧化膜,且渗层与基体合金的附着性良好,其抗高温氧化性能明显优于未制备渗层的镍基高温合金。
Al-Si coating was formed on Nickel-base superalloy by slurry process. According to GB/T13303-91, the high temperature oxidation resistance at 1000 ℃ of specimens with coating and without coating was tested by static mass gain. Morphology and content of the coating were studied by SEM/EDX, and XRD-6000 was used to detect coating’s phase structure after oxidation, so the oxidation resistance can be analysized. Investigation indicated that: in the high temperature oxidation process, the coating on Nickel-based...
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2010年第4期48-51,共4页
China Surface Engineering
关键词
镍基高温合金
Al-Si渗层
高温氧化
表面形貌
Nickel-base superalloy
Al-Si coating
high temperature oxidation
surface morphology
