PlumX Metrics
Embed PlumX Metrics

Formation and characterization of Al 10 CaFe 2 compound in Al−Ca−Fe alloys

Transactions of Nonferrous Metals Society of China, ISSN: 1003-6326, Vol: 34, Issue: 2, Page: 361-377
2024
  • 2
    Citations
  • 0
    Usage
  • 2
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

The phase diagram of the Al−Ca−Fe system in the aluminum corner, including the liquidus projection and solidification reactions, was studied by using thermodynamic calculations and experimental techniques. The results show that instead of the Al 3 Fe phase, a ternary compound whose composition corresponds to the formula Al 10 CaFe 2 should be in equilibrium with the aluminum solid solution (Al). Thе transition from the binary to the ternary compound occurs via the peritectic transformation L + Al 3 Fe → (Al) + Al 10 CaFe 2 (at 638 °C, 3.3 at.% Ca and 0.5 at.% Fe). Primary and eutectic crystals of the ternary compound have a compact morphology, in contrast to needle-shaped inclusions of the Al 3 Fe phase. First principles calculations and X-ray diffraction analysis were used to determine the crystal lattice structure of Al 10 CaFe 2 ternary compound. In addition, the near eutectic alloy Al−6wt.%Ca−1wt.%Fe after annealing at 500−600 °C has a fine structure with a total fraction of excess phases of about 25 vol.%. Thus, the Al−Ca−Fe system can be used to create new aluminum-matrix composite alloys.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know