A new correlation between MC precipitate size, aging time and temperature for an advanced austenitic steel

Research output: Contribution to journalArticle

Abstract

The MC precipitate size distributions have been measured for times of 1, 10, 100, 300 and 1000 hr at 700 and 900°C in a 16Ni-14Cr advanced austenitic steel. A new correlation between the mean precipitate size, aging time and temperature has been developed. The new correlation is compatible with a solute exhaustion mechanism, which may explain why (i) the MC precipitates formed on matrix dislocations resist coarsening for up to 3000 hr at 900°C; and (ii) the degree of cold work (i.e., the dislocation density), which determines the number ofMC nucleation sites, controls the limiting precipitate size.

Original languageEnglish (US)
Pages (from-to)364-368
Number of pages5
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Volume114
Issue number3
DOIs
StatePublished - Jan 1 1992

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering

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