Phase diagram of Au-Al-Cu at 500 A degrees C

作者:Li, Jyun Lin; Lo, Pei Jen; Ho, Ming Chi; Hsieh, Ker Chang*
来源:GOLD BULLETIN, 2014, 47(3): 167-175.
DOI:10.1007/s13404-014-0140-2

摘要

Diffusion couples and equilibrated alloys were used to construct the isothermal phase diagram of Au-Al-Cu at 500 A degrees C. Electron microprobe analyses were performed to determine the phase compositions and phase relationships. Two ternary phases and 10 three-phase equilibriums were determined in this study. Four additional three-phase equilibriums were estimated to meet the criteria for phase relationships. The delta (Au2Al) phase exhibited a wide range of solubility, and the lattice parameters were examined by X-ray. The solubility ranges of the binary intermetallic phases were also determined.