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

J. A. Todd, J. C. Ren

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

The MC precipitate size distributions have been measured for times of 1, 10, 100, 300 and 1000 h 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 h at 900 C; and (ii) the degree of cold work (i.e. the dislocation density), which determines the number of MC nucleation sites, controls the limiting precipitate size.

Original languageEnglish (US)
Pages (from-to)189-194
Number of pages6
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume201
Publication statusPublished - Jan 1 1990
Event1990 Pressure Vessels and Piping Conference - Nashville, TN, USA
Duration: Jun 17 1990Jun 21 1990

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this