The possible transition mechanism for the meta-stable phase in the 7xxx aluminium

Artenis Bendo, Kenji Matsuda, Katsuhiko Nishimura, Norio Nunomura, Taiki Tsuchiya, Seungwon Lee, Calin D. Marioara, Tomohito Tsuru, Masatake Yamaguchi, Kazuyuki Shimizu, Hiroyuki Toda

Research output: Contribution to journalReview article

Abstract

Metastable phases in aluminium alloys are the primary nano-scale precipitates which have the biggest contribution to the increase in the tangible mechanical properties. The continuous increase in hardness in the 7xxx aluminium alloys is associated with the phase transformation from clusters or GP-zones to the metastable η′ phase. The high-resolution electron imaging is used to observe the precipitates and reconstruct a kinetic model that might explain the transformation. This work is an attempt to gain insight into how the structural transformation may occur based on the shortest route of diffusion for the eventual structure to result in that of the η′ phase.

Original languageEnglish
Pages (from-to)1621-1627
Number of pages7
JournalMaterials Science and Technology (United Kingdom)
Volume36
Issue number15
DOIs
Publication statusPublished - Oct 12 2020

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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