Paper Title:
High Temperature SO2-Gas Corrosion of Ni-Cr-Co Base Superalloy between 800 and 1000°C
  Abstract

The Ni-base superalloy, INCONEL740, whose major alloying elements are 24.31 wt.%Cr-20 wt.%Co, was corroded in an Ar-0.2%SO2-gas atmosphere between 800 and 1000oC for 50, and 100 hr in an electric furnace. The scales formed after SO2-gas corrosion tests were generally adherent at 800 and 900oC. At 1000oC, massive scale spallation however occurred over the entire surface. The scales consisted of Cr2O3, (Ni,Co)Cr2O4, and TiO2, indicating that not sulfidation but an oxidation reaction prevailed owing to the thermodynamic stability of concerning oxides.

  Info
Periodical
Defect and Diffusion Forum (Volumes 312-315)
Edited by
Andreas Öchsner, Graeme E. Murch and João M.P.Q. Delgado
Pages
451-454
DOI
10.4028/www.scientific.net/DDF.312-315.451
Citation
S. H. Bak, D. B. Lee, "High Temperature SO2-Gas Corrosion of Ni-Cr-Co Base Superalloy between 800 and 1000°C", Defect and Diffusion Forum, Vols. 312-315, pp. 451-454, 2011
Online since
April 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Katia Weulersse, Gérard Moulin, P. Billard, G. Pierotti
973
Authors: Naoya Masahashi, M. Oku, Sadao Watanabe, Shuji Hanada
Abstract:The laminated composite of Fe–Al alloy and CrMo steel was fabricated by clad rolling to provide additional properties to the steel such as...
866
Authors: Li Wang, Wen Fu, Li Chen
Abstract:In order to get a clear picture for describing the growth process of plasma electrolytic oxidation coatings under escalating voltage...
720
Authors: Vadim Sh. Sufiiarov, Evgenii V. Borisov, Igor A. Polozov
Chapter 2: Properties of Materials, Electrophysical and Mechanical Methods and Technologies of Materials Processing
Abstract:The results of the research on selective laser melting process of the Inconel 718 superalloy powder under conditions of additive...
333