Paper Title:
Intragranularly Nucleated Austenite in a 2205 Duplex Stainless Steel
  Abstract

The effect of the degree of supersaturation in a coarse-grained h-ferrite matrix on the consequent isothermal transformation of h-ferrite to austenite at 1150‖ in a 2205 duplex stainless steel has been investigated. The results indicate that rapid cooling (at the cooling rate 100‖/s) to the ambient temperature after 135P‖ solution treatment of h-ferrite matrix leads to a very high supersaturated solid solution state, which significantly enhances the formation of the intragranularly nucleated austenite in the subsequent isothermal transformation at 1150‖. The feature of the intragranularly nucleated austenite has been revealed; it appears that after the initial nucleation events for intragranularly nucleated austenite, subsequent small particles of austenite can form sympathetically on the ferrite/austenite interface.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
4881-4886
DOI
10.4028/www.scientific.net/MSF.539-543.4881
Citation
C.Y. Chen, H. W. Yen, T.H. Yu, J. R. Yang, "Intragranularly Nucleated Austenite in a 2205 Duplex Stainless Steel", Materials Science Forum, Vols. 539-543, pp. 4881-4886, 2007
Online since
March 2007
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