摘要
研究了 ＮｉＡｌ－２８Ｃｒ—５Ｍｏ—１Ｈｆ合金在 １０００—１２００℃空气中的氧化行为 Ｘ射线结构分析表明，氧化膜主要由α -Ａｌ２Ｏ３构成，并含有Ｃｒ２Ｏ３和少量ＨｆＯ２．采用扫描电镜和能谱分析研究了氧化产物的微观组织及成分。
The isothermal oxidation behavior of NiAl-28Cr-5Mo-1Hf alloy at 1000-1200 degreesC in air has been studied. The results show that isothermal oxidation kinetics of the NiAl-28Cr-5Mo-1Hf alloy obeys the parabolic law at all test temperatures. The microstructure and composition of the oxide layer have been studied by means of X-ray diffractometer, scanning electron microscope with an EDAX unit. The oxidation scale mainly consists of alpha -Al2O3, and there are also Cr2O3 and a little HfO2. The oxidation mechanism was discussed from the phase contitution.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第8期857-860,共4页
Acta Metallurgica Sinica
基金
国家自然科学基金重大项目59895152
"863"高技术项目863-715-005-0030
