Electrochemical characterization of chromia- and alumina-forming nickel-based superalloys in molten silicates

Electrochemical characterization of chromia- and alumina-forming nickel-based superalloys in... Article history: A comparison of the corrosion behaviour of simplified chromia- and alumina-forming alloys (Ni–30Cr Received 27 May 2015 and Ni–8Al–28Cr) in molten glass is performed via electrochemical methods. A pre-oxidation treatment Received in revised form 9 September 2015 in air prior to immersion ensured the formation of a 2-m-thick oxide scale of Cr O or Al O . The lifetime 2 3 2 3 Accepted 25 October 2015 of Ni–30Cr depended on the competition between the oxide growth and its dissolution in the melt. For Available online 11 November 2015 Ni–8Al–28Cr, the high solubility of alumina in the melt studied here led to severe aluminium loss in a few minutes and clearly demonstrated the higher efficiency of chromia-forming alloys for molten glass Keywords: applications. Molten silicates © 2015 Elsevier B.V. All rights reserved. Superalloys High temperature corrosion Passivity Electrochemical characterization 1. Introduction protective oxide layer (i.e., Al O ). Dutta et al. [9] reported the high 2 3 stability of thermally oxidized aluminide coatings on a superalloy The largest challenge faced during the production of glass is 690 substrate in a borosilicate melt at 1248 K. They attributed this related to the lifetime of the glass-processing equipment, which http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Electrochemical characterization of chromia- and alumina-forming nickel-based superalloys in molten silicates

Loading next page...
 
/lp/elsevier/electrochemical-characterization-of-chromia-and-alumina-forming-nickel-xPZCjFZfja
Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2015.10.176
Publisher site
See Article on Publisher Site

Abstract

Article history: A comparison of the corrosion behaviour of simplified chromia- and alumina-forming alloys (Ni–30Cr Received 27 May 2015 and Ni–8Al–28Cr) in molten glass is performed via electrochemical methods. A pre-oxidation treatment Received in revised form 9 September 2015 in air prior to immersion ensured the formation of a 2-m-thick oxide scale of Cr O or Al O . The lifetime 2 3 2 3 Accepted 25 October 2015 of Ni–30Cr depended on the competition between the oxide growth and its dissolution in the melt. For Available online 11 November 2015 Ni–8Al–28Cr, the high solubility of alumina in the melt studied here led to severe aluminium loss in a few minutes and clearly demonstrated the higher efficiency of chromia-forming alloys for molten glass Keywords: applications. Molten silicates © 2015 Elsevier B.V. All rights reserved. Superalloys High temperature corrosion Passivity Electrochemical characterization 1. Introduction protective oxide layer (i.e., Al O ). Dutta et al. [9] reported the high 2 3 stability of thermally oxidized aluminide coatings on a superalloy The largest challenge faced during the production of glass is 690 substrate in a borosilicate melt at 1248 K. They attributed this related to the lifetime of the glass-processing equipment, which

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2016

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve Freelancer

DeepDyve Pro

Price
FREE
$49/month

$360/year
Save searches from Google Scholar, PubMed
Create lists to organize your research
Export lists, citations
Read DeepDyve articles
Abstract access only
Unlimited access to over
18 million full-text articles
Print
20 pages/month
PDF Discount
20% off