研究了微晶化对TiAl金属间化合物在800~900℃抗恒温及循环氧化性能的影响铸态和微晶TiAl在800~900℃下均形成TiO2和Al2O3的复合氧化物膜,恒温氧化动力学均近似服从抛物线规律,微晶化对TiAl的恒温氧化性能无明显影响,但微晶化通过改善氧化膜的粘附性提高了TiAl的抗循环氧化能力
The effect of microcrystalization on the oxidation resistance of TiAl intermetallics was investigated at 800 ~ 900℃. Both the cast TiAl and microcrystalline TiAl formed TiO2+AI2O3 complex scales at 800 ~900℃, and their isothermal oxidation kinetics all ne
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