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李松瑞 , 高世谷 , 高秀娟
金属学报
用电阻测定及X射线衍射法研究了共晶成分Au-Si合金快速凝固箔带在等温时效时的相变过程,提出了由非晶态至平衡态的四阶段转变顺序,分析了各亚稳相的结构和电子浓度特征,说明在等温时效过程中亦可生成Hume-Rothery电子化合物及尺寸因素化合物。
关键词: Au-Si非晶态 , isothermal phase transformation , null
Li Songrui Gao Shigu Gao Xiujuan Central-South University of Technology , Changsha , China [Originally published in ACTAMETALL SIN (CHINESEEDN) 24 (5) 1988pp B335—B339 , received 10 November 1986 , in revised form 9 April 1987]
金属学报(英文版)
Electric resistivity measurements and X-ray diffraction analysis were performed to study the isothermal phase transformation in amorphous Au-Si ribbons with eutectic composition pre- pared using melt-spinning technique.A series of phase transformations take place spontaneously at room temperature and accelerate at elevated temperatures.Four stages of the transformation from amorphous state to the equilibrium state can be distinguished.Dis- cussion on the structural character of the metastable phases indicates that Hume-Rothery electron compounds and size factor compounds could form during isothermal aging.
关键词: Au-Si amorphous alloy , null
