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<p>The remarkable mechanical properties of Fe-based metallic glass alloys, particularly their high corrosion and wear resistance, motivated the study of KUAMET 6B2<sup>®</sup> Fe-based metallic powder deposition on an AISI 4130 substrate using the Extreme High-Speed Material Deposition (EHLA) process, aiming to put forward a processing strategy for the deposition of amorphous coatings using the EHLA technique. Deposition parameters were studied for track deposition, single-layer, and multi-layer coatings, where Optical Microscopy, Scanning Electron Microscopy, Vicker hardness and X-Ray Diffraction were applied to analyze the depositions. High cooling rates combined with low overlapping rates used in single-layer deposits prevent crystallization, increasing the amorphous phase content from 19% to 33%. A novelty processing strategy was proposed based on multi-layers deposition, improving amorphous content of 38%, while mitigating cracks propagation.</p>

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Processing of Fe-based metallic glass alloy by extreme high-speed laser deposition

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月20日

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  • Ana Carolina Maciel,
  • Viktor Glushych,
  • Ana Sofia C M D’Oliveira

摘要

The remarkable mechanical properties of Fe-based metallic glass alloys, particularly their high corrosion and wear resistance, motivated the study of KUAMET 6B2® Fe-based metallic powder deposition on an AISI 4130 substrate using the Extreme High-Speed Material Deposition (EHLA) process, aiming to put forward a processing strategy for the deposition of amorphous coatings using the EHLA technique. Deposition parameters were studied for track deposition, single-layer, and multi-layer coatings, where Optical Microscopy, Scanning Electron Microscopy, Vicker hardness and X-Ray Diffraction were applied to analyze the depositions. High cooling rates combined with low overlapping rates used in single-layer deposits prevent crystallization, increasing the amorphous phase content from 19% to 33%. A novelty processing strategy was proposed based on multi-layers deposition, improving amorphous content of 38%, while mitigating cracks propagation.