DIFFUSION-CONTROLLED PHASE TRANSFORMATIONS OF Al_(65)Cu_(20)Cr_(15) QUASICRYSTALLINE PARTICLES/AI MATRIX COMPOSITES
QI Yuhong;ZHANG Zhanping;HEI Zukun (Institute of Metal and Technology; Dalian Maritime University; Dalian 116026)QUAN Mingliu (Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)DONG Chuang (Dalian University of Technology; 116024)
Cite this article:
QI Yuhong;ZHANG Zhanping;HEI Zukun (Institute of Metal and Technology; Dalian Maritime University; Dalian 116026)QUAN Mingliu (Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)DONG Chuang (Dalian University of Technology; 116024). DIFFUSION-CONTROLLED PHASE TRANSFORMATIONS OF Al_(65)Cu_(20)Cr_(15) QUASICRYSTALLINE PARTICLES/AI MATRIX COMPOSITES. Acta Metall Sin, 1998, 34(1): 19-23.
Abstract Diffuse phase transformations of A165Cu20Cr15 quasicrystalline particles/AI composite were studied by TEM for the first time. It shows that SIQC quasicrystalline particles transform into FIQC, (DQC+DA)+θand θ phases respectively at the different hot press temperatures of 600, 650 and 700 ℃. During diffusion-controlled phase transformation, SIQC phase transforms through the transitional FIQC, DQC, DA phase to the stable θ phase.