Significant Mechanical Softening of an Al-Y-Ni-Co Metallic Glass on Cold and Hot Rolling

V. S. Zolotorevsky, A. I. Bazlov, A. G. Igrevskaya, A. S. Aronin, G. E. Abrosimova, D. V. Louzguine-Luzgin

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Deformation-induced crystallization behavior of the Al85Y8Ni5Co2 metallic glassy samples subjected to cold and hot rolling with 35% size reduction is studied in the present work. The formation of primary nanoscale α-Al particles is observed after rolling at 473 K, which is below the glass-transition and crystallization temperature. It is found that contrary to thermal crystallization on heating below the glass-transition temperature, no intermetallic compounds but only α-Al nanoparticles were formed during the deformation-induced crystallization. The behavior is discussed in connection with the excess volume generated upon deformation. Structural changes are studied by x-ray diffractometry and transmission electron microscopy. Variation in the Vickers microhardness is also detected.

Original languageEnglish
Pages (from-to)4079-4085
Number of pages7
JournalJOM
Volume71
Issue number11
DOIs
Publication statusPublished - 2019 Nov 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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