Paper Title:
Microstructure and High Temperature Mechanical Properties of Inconel 617
  Abstract

Inconel 617 is a candidate tube material for high temperature gas-cooled reactors (HTGR). The microstructure and mechanical properties of Inconel 617 were studied after exposure at high temperature of 1050oC. The dominant oxide layer was Cr-oxide. The internal oxide and Crdepleted region were observed below the Cr-oxide layer. The major second phases are M23C6 and M6C types of carbides. The composition of M23C6 and M6C were determined to be Cr21Mo2C6 and Mo3Cr2(Ni,Co)1C, respectively, by EDS. These carbides are coarsened during exposure. M6C carbide is more stable than M23C6 at high temperature. There was not much change in mechanical properties after exposure at 1050oC for 1000 h.

  Info
Periodical
Materials Science Forum (Volumes 544-545)
Edited by
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
Pages
411-414
DOI
10.4028/www.scientific.net/MSF.544-545.411
Citation
T. S. Jo, G. S. Kim, Y. I. Seo, W. S. Ryu, Y. D. Kim, "Microstructure and High Temperature Mechanical Properties of Inconel 617", Materials Science Forum, Vols. 544-545, pp. 411-414, 2007
Online since
May 2007
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Price
$32.00
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