Study of δ phase on static recrystallization behavior of inconel 718 alloy

Hwa-Teng Lee, Wen Hsin Hou

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The mechanical properties of Inconel 718 alloy depend on its microstructural features. Controlling the grain size during manufacturing is currently achieved through the use of a powerful hot forming process performed at a temperature sufficiently high to induce dynamic recrystallization. The present study proposes an alternative technique to achieve a uniform fine grain structure by using static recrystallization and a proper control of δ precipitation. The results show that a fine structure with an average grain size of ASTM No. 7 can be achieved. And in this study the finest grains yet achievable is ca. 200 nm. As a result, the proposed technique provides a feasible means of controlling the grain size without the need for an energy consumption and technically sophisticated hot forming process.

Original languageEnglish
Pages (from-to)6987-6995
Number of pages9
JournalJournal of Nanoscience and Nanotechnology
Volume12
Issue number9
DOIs
Publication statusPublished - 2012 Sep 1

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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