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The Al2O3 particle reinforced Al-Fe composites fabricated through an in-situ reaction of Fe2O3 powders in Al melts

作者

  • Hao Lian

    Author

  • Wenlong Yu

    Author

  • Zhiming SHI

    Inner Mongoli University of Technology

    Author

DOI:
https://doi.org/10.63333/eem.v2n11
关键词:
Al-Fe; composite; in-situ reaction
摘要

Al-Fe alloys possess excellent ability to resist heat and wear. However, their mechanical properties are greatly deteriorated due to the coarse needle-like and plate-like Al3Fe phases segregating the soft Al matrix. In this study, the Al2O3 particle-reinforced Al-1.8 wt% Fe and Al-5.0 wt% Fe composites were prepared via an in-situ reaction of Fe2O3 powders in Al melts, the effects of Al2O3 particles on microstructure and mechanical properties were systematically investigated. Results show that the composites can be prepared through a reduction reaction of Fe2O3 powders in stirring Al melts at 1200 ℃ for 30 min. The densely dispersed Al2O3 particles refine the microstructure by inhibiting growths of α-Al grains and Al3Fe phases. The mechanical properties of composites are improved by grain refinement and secondary-phase strengthening. The yield strength, tensile strength, elongation, and hardness are increased by 32.3%, 52.7%, 57.1%, and 28.8% for Al-1.8 Fe composite and 18.0%, 51.1%, 150.0%, and 21.1% for Al-5 Fe composite respectively when compared with their corresponding alloys. These composites, combined with high strength, plasticity, and hardness, are promising materials for applications in energy and environment fields.

##submission.authorBiographies##
  1. Hao Lian

    Doctor student

  2. Wenlong Yu

    Master student

参考

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2026-03-11
期次
卷 2 期 1 (2026)
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The Al2O3 particle reinforced Al-Fe composites fabricated through an in-situ reaction of Fe2O3 powders in Al melts. (2026). Energy & Environment Management, 2(1), 1-16. https://doi.org/10.63333/eem.v2n11

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