CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12244 > Article
Paper
25 April 2022 The corrosion research of HR160 superalloy at 700 ° C molten KCl-MgCl2 with air atmosphere
Zeyao Zeng, Jiqing Zhao, Yang Gang, Xu Luo
Author Affiliations +
Proceedings Volume 12244, 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022); 122441S (2022) https://doi.org/10.1117/12.2635119
Event: 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022), 2022, Guilin, China
Abstract
The nuclear power molten salt reactor of heat storage metal tank and fluid pipe are usually consumed by corrosion in high temperature chlorinated environment, and the structure material thickness design reference for the corrosion rate is critical. This work focused the compatibility study of high Cr-Co-Ni-Si type HR160 superalloy with molten KCl-MgCl2/air corrosion at 700°C for 4-240 h. By XRD, SEM and OM observation analysis and mass recording curves showed that the corrosion rates curve of HR160 was parabolic in 96 h, the corrosion rate was in the range of 1~2.5 mm/a between 15~63 μm uniform corrosion product layer in 96 h. The mass loss was mainly due to the oxidative chlorination of Cr elements, and the outer shell layer was a porous film structure of MgCr2O4 corrosion products peeled off by the corrosion products with the growth of immersion corrosion time. The second outer uniform corrosion product layer was dominated by Mg2SiO4 and Si oxidation reaction. Low viscosity molten salt through the porous at high temperature, sparse corrosion products layer continues to contact with the substrate uniform corrosion, and the reaction generated by the high mobility of chlorine gas, which penetrate the oxidation layer and the formation of low melting point volatile metal chloride with the alloy.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Zeyao Zeng, Jiqing Zhao, Yang Gang, and Xu Luo "The corrosion research of HR160 superalloy at 700 ° C molten KCl-MgCl2 with air atmosphere", Proc. SPIE 12244, 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022), 122441S (25 April 2022); https://doi.org/10.1117/12.2635119
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 9 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Corrosion
Chromium
Oxides
Magnesium
Silicon
Oxidation
Chemical elements
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top