Compression behavior of inter-particle regions in high-strength Al84Ni7Gd6Co3 alloy

Zhi Wang, R. T. Qu, Konda Gokuldoss Prashanth, Jürgen Eckert, Sergio Scudino

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We have studied the deformation behavior of the inter-particle regions using a high strength nanostructured alloy (Al84Ni7Gd6Co3) produced by hot pressing of amorphous powders. The inter-particle regions, including soft aluminum and pores, are relatively weak compared to the consolidated particles. Plastic deformation, crack branching and deflection are observed in the inter-particle regions, giving rise to the arrest of cracks. High density of stacking faults and/or nanotwins are formed in the inter-particle regions after plastic deformation. The fracture mode of the Al84Ni7Gd6Co3 nanostructured alloy changes from the inter-particle failure to trans-particle failure with decreasing volume fraction of the inter-particle regions.
Original languageEnglish
Pages (from-to)25-28
Number of pages4
JournalMaterials letters
Issue number15 December
Publication statusPublished - 15 Dec 2016


  • Deformation and fracture
  • Metals and alloys
  • Sintering
  • Triple point

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