Formation of (B2+D0(3)) two-phase microstructure in a Fe-23 Al-7 Ti alloy

Chun-Wei Su, Chuen-Guang Chao, Tzeng-Feng Liu

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

As-quenched microstructure of the Fe-23 at% A1-7 at% Ti alloy was a mixture of (A2+D0(3)) phases. When the as-quenched alloy was aged at 1073 K for moderate times, D0(3) domains grew preferentially along (100) directions and extremely fine B2 particles occurred at a/2(100) antiphase boundaries (APBs). After prolonged aging at 1073 K, the 132 particles would grow to occupy the whole a/2(100) APBs. Consequently, the stable microstructure of the alloy at 1073 K was a mixture of (B2+D0(3)) phases.
Original languageEnglish
Pages (from-to)2993-2996
Number of pages4
JournalMaterials Transactions
Volume48
Issue number11
DOIs
StatePublished - Nov 2007

Keywords

  • phase transformation; electron microscopy; microstructure
  • PHASE-TRANSFORMATIONS; STABILITY; SYSTEM; FE3AL

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