气体雾化Ti_3Al基合金的颗粒特征与结晶形貌

材料研究学报, 1995, 9(3): 228-232.

气体雾化Ti_3Al基合金的颗粒特征与结晶形貌

中国科学院金属研究所

哈尔滨工业大学

关键词： Ti_3Al基合金 , rapid solidification , microstructure , distribution of particle-size

THE CHARACTERISTIC AND CRYSTALLINIC MORPHOLOGY OF A Ti_3Al-BASED POWDER PREPARED BY GAS ATOMIZING

XU Rui , CUI Yuyou , LI Dong , HU Zhuangqi(Institute of Metal Research. Chinese Academy of Sciences)XU Daming , LI QingChun(Harbin Institute of Techonlogy) , null

Keywords： : Ti_3Al-based alloy , 快速凝固 , 凝固组织 , 颗粒尺寸分布

研究了气体雾化Ti-25Al-10Nb-3V-1Mo(a.%)合金的粉末颗粒特征及快速凝固组织.雾化气体压力大于8MPa时,Ti_3Al基合粉末颗粒圆整,颗粒质量分数与其直径间存在对数正态关系,颗粒表面具有明显的合金结晶特征,其凝固组织具有清晰的二次枝晶,观照冷却速度与二次技晶间距的关系,得到合金的冷却速度为103-105K/s.

The characteristic and microstructure of rapidly solidified Ti-25Al-10Nb-3V -1Mo (a.%) powder prepared by gas atomizing have been studied in this paper. The powder atomized with gas pressure larger than 8MPa is logarithmic normal function of particle diam

参考文献

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[3]	WardCH．InterMaterRev,1993

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气体雾化Ti_3Al基合金的颗粒特征与结晶形貌

THE CHARACTERISTIC AND CRYSTALLINIC MORPHOLOGY OF A Ti_3Al-BASED POWDER PREPARED BY GAS ATOMIZING

参考文献