摘要
研究了NiAl-31Cr-3Mo合金在1250～1500K空气中的氧化行为。实验结果表明:在实验温度范围内,合金的氧化动力学曲线符合抛物线规律;氧化过程中合金表面生成了以α-Al2O3为主的氧化膜,并且含有Cr2O3。采用扫描电镜和能谱分析研究了氧化产物的微观组织及构成,并从合金的相组成探讨了NiAl-31Cr-3Mo合金的氧化机制。
The isothermal oxidation behavior of NiAl-31Cr-3Mo alloy at 1250～1500 K in static air atmosphere was investigated.The experimental results revealed that the isothermal oxidation kinetics of the tested alloy agreed with the parabolic law at all test temperatures.The oxidation layer consisted of α-Al2O3 and little Cr2O3 on the surface of the tested alloy.The microstructure and composite of the oxide layer were studied by X-ray diffractometer,scanning electron microscope with an EDAX unit.The oxidation mechanism was discussed from the phase constitute for NiAl-31Cr-3Mo alloy.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2011年第1期12-16,共5页
Chinese Journal of Rare Metals
基金
国防基础科研项目(A3720060115)
湖南省科技厅项目(2008TP4024-2)资助
